Earth science or geoscience includes all fields of natural science related to the planet Earth. This is a branch of science dealing with the physical constitution of its atmosphere. Earth science is the study of our planet’s physical characteristics, from earthquakes to raindrops, floods to fossils. Earth science can be with a much older history. Earth science encompasses four main branches of study, the lithosphere, the hydrosphere, the atmosphere, the biosphere, each of, further broken down into more specialized fields. There are both holistic approaches to earth sciences, it is the study of Earth and its neighbors in space. Some earth scientists use their knowledge of the planet to locate and develop energy and mineral resources. Others study the impact of human activity on Earth's environment, design methods to protect the planet; some use their knowledge about earth processes such as volcanoes and hurricanes to plan communities that will not expose people to these dangerous events. The earth sciences can include the study of geology, the lithosphere, the large-scale structure of the earth's interior, as well as the atmosphere and biosphere.
Earth scientists use tools from geography, physics, chemistry and mathematics to build a quantitative understanding of how the earth works and evolves. Earth science affects our everyday lives. For example, meteorologists study the watch for dangerous storms. Hydrologists warn of floods. Seismologists try to predict where they will strike. Geologists study rocks and help to locate useful minerals. Earth scientists work in the field—perhaps climbing mountains, exploring the seabed, crawling through caves, or wading in swamps, they measure and collect samples they record their findings on charts and maps. The following fields of science are categorized within the earth sciences: Physical geography covers aspects of geomorphology, soil study, meteorology and biogeography. Geology describes the rocky parts of its historic development. Major subdisciplines are mineralogy and petrology, geomorphology, stratigraphy, structural geology, engineering geology, sedimentology. Geophysics and geodesy investigate the shape of the Earth, its reaction to forces and its magnetic and gravity fields.
Geophysicists explore the earth's core and mantle as well as the tectonic and seismic activity of the lithosphere. Geophysics is used to supplement the work of geologists in developing a comprehensive understanding of crustal geology in mineral and petroleum exploration. Seismologists use geophysics to understand plate tectonic shifting, as well as predict seismic activity. Soil science covers the outermost layer of the earth's crust, subject to soil formation processes. Major subdivisions in this field of study include pedology. Ecology covers the interactions between the flora; this field of study differentiates the study of Earth from the study of other planets in the Solar System, Earth being the only planet teeming with life. Hydrology and limnology are studies which focus on the movement and quality of the water and involves all the components of the hydrologic cycle on the Earth and its atmosphere. "Sub-disciplines of hydrology include hydrometeorology, surface water hydrology, watershed science, forest hydrology, water chemistry."
Glaciology covers the icy parts of the Earth. Atmospheric sciences cover the gaseous parts of the Earth between the exosphere. Major subdisciplines include meteorology, atmospheric chemistry, atmospheric physics. Plate tectonics, mountain ranges and earthquakes are geological phenomena that can be explained in terms of physical and chemical processes in the earth's crust. Beneath the Earth's crust lies the mantle, heated by the radioactive decay of heavy elements; the mantle is not quite solid and consists of magma, in a state of semi-perpetual convection. This convection process causes the lithospheric plates to move, albeit slowly; the resulting process is known as plate tectonics. Plate tectonics might be thought of as the process; as the result of seafloor spreading, new crust and lithosphere is created by the flow of magma from the mantle to the near surface, through fissures, where it cools and solidifies. Through subduction, oceanic crust and lithosphere returns to the convecting mantle. Areas of the crust where new crust is created are called divergent boundaries, those where it is brought back into the earth are convergent boundaries and those where plates slide past each other, but no new lithospheric material is created or destroyed, are referred to as transform boundaries Earthquakes result from the movement of the lithospheric plates, they occur near convergent boundaries where parts of the crust are forced into the earth as part of subduction.
Volcanoes result from the melting of subducted crust material. Crust material, forced into the asthenosphere melts, some portion of the melted material becomes light enough to rise to the surface—giving birth to volcanoes; the troposphere, mesosphere and exosphere are the five layers which make up Earth's atmosphere. 75 % of the gases in the atmosphere are located within the lowest layer. In all, the atmosphere is made up of about 78.0% nitrogen, 20.9% ox
James Dwight Dana
James Dwight Dana FRS FRSE was an American geologist, mineralogist and zoologist. He made pioneering studies of mountain-building, volcanic activity, the origin and structure of continents and oceans around the world. Dana was born February 1813, in Utica, New York, his father was merchant his mother was Harriet Dwight. Through his mother he was related to the Dwight New England family of missionaries and educators including uncle Harrison Gray Otis Dwight and first cousin Henry Otis Dwight, he showed an early interest in science, fostered by Fay Edgerton, a teacher in the Utica high school, in 1830 he entered Yale College in order to study under Benjamin Silliman the elder. Graduating in 1833, for the next two years he was teacher of mathematics to midshipmen in the Navy, sailed to the Mediterranean while engaged in his duties. In 1836 and 1837 he was assistant to Professor Silliman in the chemical laboratory at Yale, for four years, acted as mineralogist and geologist of the United States Exploring Expedition, commanded by Captain Charles Wilkes, in the Pacific Ocean.
His labors in preparing the reports of his explorations occupied parts of thirteen years after his return to America in 1842. His notebooks from the four years of travel contained fifty sketches and diagrams, including views of both Mount Shasta and Castle Crags. Dana's sketch of Mount Shasta was engraved in 1849 for publication in the American Journal of Science and Arts, along with a lengthy article based on Dana's 1841 geological notes. In the article he described in scientific terms the rocks and geology of the Shasta region; as far as is known, his sketch of Mount Shasta became the second view of the mountain published. In 1844 he again became a resident of New Haven, married Professor Silliman's daughter, Henrietta Frances Silliman. In 1850, he was appointed as Silliman's successor, as Silliman Professor of Natural History and Geology in Yale College, a position which he held until 1892. In 1846 he became joint editor, during the years of his life was chief editor, of the American Journal of Science and Arts, to which he was a constant contributor, principally of articles on geology and mineralogy.
The 1849 publication of his geology of Mount Shasta was undoubtedly a response to the California gold rush publicity. Dana was the pre-eminent U. S. geologist of his time, he was one of the few trained observers anywhere who had first-hand knowledge of the northern California terrain. He had written that there was a likelihood that gold was to be found all along the route between the Umpqua River in Oregon and the Sacramento Valley, he was deluged with inquiries about the Shasta region, was forced to publish in more detail some advice to the would-be gold miners. Dana was responsible for developing much of the early knowledge on Hawaiian volcanism. In 1880 and 1881 he led the first geological study of the volcanics of Hawaii island. Dana theorized that the volcanic chain consisted of two volcanic strands, dubbed the "Loa" and "Kea" trends; the Kea trend included Kīlauea, Mauna Kea, Kohala and West Maui. The Loa trend includes Lōʻihi, Mauna Loa, Hualālai, Kahoʻolawe, Lānaʻi, West Molokaʻi. Following another expedition by fellow geologist C. E. Dutton in 1884, Dana returned to the island once again and in 1890 he published a manuscript on the island, the most detailed of its day, would be the definitive source upon the island's volcanics for decades.
Dana died on April 14, 1895. Dana was married to Henrietta Silliman in 1844, their son, Edward Salisbury Dana, was a distinguished mineralogist. Dana's best known books were his System of Mineralogy Manual of Mineralogy, his Manual of Geology. A bibliographical list of his writings shows 214 titles of books and papers, beginning in 1835 with a paper on the conditions of Vesuvius in 1834, his reports on Zoophytes, on the Geology of the Pacific Area, on Crustacea, summarizing his work on the Wilkes Expedition, appeared from 1846 onwards. Other works included Manual of Mineralogy, afterwards entitled Manual of Lithology. In 1887, Dana revisited the Hawaiian Islands, the results of his further investigations were published in a quarto volume entitled Characteristics of Volcanoes; the Manual of Mineralogy by J. D. Dana became a standard college text, has been continuously revised and updated by a succession of editors including W. E. Ford, Cornelius S. Hurlbut, beginning with the 22nd by Cornelis Klein.
The 23rd edition is now in print under the title Manual of Mineral Science, revised by Cornelis Klein and Barbara Dutrow. Dana's System of Mineralogy has been revised, the 6th edition being edited by his son Edward Salisbury Dana. A 7th edition was published in 1944, the 8th edition was published in 1997 under the title Dana's New Mineralogy, edited by R. V. Gaines et al. Between 1856 and 1857, Dana published a number of manuscripts in an effort to reconcile scientific findings with the Bible. Among these, he wrote Science and the Bible: A Review of "The Six Days of Creation" of Prof. Tayler Lewis, Creation, Or, The Biblical Cosmogony in the Light of Modern Science. Dana was awarded the Copley Medal by the Royal Society in 1877, the Wollaston Medal by the Geological Society of London in 1874 and the Clarke Medal by the Royal Society of New South Wales in 1882. Dana was president of the Geological Society of America in 1890. Dana Park in Alba
Geology is an earth science concerned with the solid Earth, the rocks of which it is composed, the processes by which they change over time. Geology can include the study of the solid features of any terrestrial planet or natural satellite such as Mars or the Moon. Modern geology overlaps all other earth sciences, including hydrology and the atmospheric sciences, so is treated as one major aspect of integrated earth system science and planetary science. Geology describes the structure of the Earth on and beneath its surface, the processes that have shaped that structure, it provides tools to determine the relative and absolute ages of rocks found in a given location, to describe the histories of those rocks. By combining these tools, geologists are able to chronicle the geological history of the Earth as a whole, to demonstrate the age of the Earth. Geology provides the primary evidence for plate tectonics, the evolutionary history of life, the Earth's past climates. Geologists use a wide variety of methods to understand the Earth's structure and evolution, including field work, rock description, geophysical techniques, chemical analysis, physical experiments, numerical modelling.
In practical terms, geology is important for mineral and hydrocarbon exploration and exploitation, evaluating water resources, understanding of natural hazards, the remediation of environmental problems, providing insights into past climate change. Geology is a major academic discipline, it plays an important role in geotechnical engineering; the majority of geological data comes from research on solid Earth materials. These fall into one of two categories: rock and unlithified material; the majority of research in geology is associated with the study of rock, as rock provides the primary record of the majority of the geologic history of the Earth. There are three major types of rock: igneous and metamorphic; the rock cycle illustrates the relationships among them. When a rock solidifies or crystallizes from melt, it is an igneous rock; this rock can be weathered and eroded redeposited and lithified into a sedimentary rock. It can be turned into a metamorphic rock by heat and pressure that change its mineral content, resulting in a characteristic fabric.
All three types may melt again, when this happens, new magma is formed, from which an igneous rock may once more solidify. To study all three types of rock, geologists evaluate the minerals; each mineral has distinct physical properties, there are many tests to determine each of them. The specimens can be tested for: Luster: Measurement of the amount of light reflected from the surface. Luster is broken into nonmetallic. Color: Minerals are grouped by their color. Diagnostic but impurities can change a mineral’s color. Streak: Performed by scratching the sample on a porcelain plate; the color of the streak can help name the mineral. Hardness: The resistance of a mineral to scratch. Breakage pattern: A mineral can either show fracture or cleavage, the former being breakage of uneven surfaces and the latter a breakage along spaced parallel planes. Specific gravity: the weight of a specific volume of a mineral. Effervescence: Involves dripping hydrochloric acid on the mineral to test for fizzing. Magnetism: Involves using a magnet to test for magnetism.
Taste: Minerals can have a distinctive taste, like halite. Smell: Minerals can have a distinctive odor. For example, sulfur smells like rotten eggs. Geologists study unlithified materials, which come from more recent deposits; these materials are superficial deposits. This study is known as Quaternary geology, after the Quaternary period of geologic history. However, unlithified material does not only include sediments. Magmas and lavas are the original unlithified source of all igneous rocks; the active flow of molten rock is studied in volcanology, igneous petrology aims to determine the history of igneous rocks from their final crystallization to their original molten source. In the 1960s, it was discovered that the Earth's lithosphere, which includes the crust and rigid uppermost portion of the upper mantle, is separated into tectonic plates that move across the plastically deforming, upper mantle, called the asthenosphere; this theory is supported by several types of observations, including seafloor spreading and the global distribution of mountain terrain and seismicity.
There is an intimate coupling between the movement of the plates on the surface and the convection of the mantle. Thus, oceanic plates and the adjoining mantle convection currents always move in the same direction – because the oceanic lithosphere is the rigid upper thermal boundary layer of the convecting mantle; this coupling between rigid plates moving on the surface of the Earth and the convecting mantle is called plate tectonics. The development of plate tectonics has provided a physical basis for many observations of the solid Earth. Long linear regions of geologic features are explained as plate boundaries. For example: Mid-ocean ridges, high regions on the seafloor where hydrothermal vents and volcanoes exist, are seen as divergent boundaries, where two plates move apart. Arcs of volcanoes and earthquakes are theorized as convergent boundaries, where one plate subducts, or moves, under another. Transform boundaries, such as the San Andreas Fault system, resulted in widespread powerful earthquakes.
Plate tectonics has provided a mechan
International Standard Serial Number
An International Standard Serial Number is an eight-digit serial number used to uniquely identify a serial publication, such as a magazine. The ISSN is helpful in distinguishing between serials with the same title. ISSN are used in ordering, interlibrary loans, other practices in connection with serial literature; the ISSN system was first drafted as an International Organization for Standardization international standard in 1971 and published as ISO 3297 in 1975. ISO subcommittee TC 46/SC 9 is responsible for maintaining the standard; when a serial with the same content is published in more than one media type, a different ISSN is assigned to each media type. For example, many serials are published both in electronic media; the ISSN system refers to these types as electronic ISSN, respectively. Conversely, as defined in ISO 3297:2007, every serial in the ISSN system is assigned a linking ISSN the same as the ISSN assigned to the serial in its first published medium, which links together all ISSNs assigned to the serial in every medium.
The format of the ISSN is an eight digit code, divided by a hyphen into two four-digit numbers. As an integer number, it can be represented by the first seven digits; the last code digit, which may be 0-9 or an X, is a check digit. Formally, the general form of the ISSN code can be expressed as follows: NNNN-NNNC where N is in the set, a digit character, C is in; the ISSN of the journal Hearing Research, for example, is 0378-5955, where the final 5 is the check digit, C=5. To calculate the check digit, the following algorithm may be used: Calculate the sum of the first seven digits of the ISSN multiplied by its position in the number, counting from the right—that is, 8, 7, 6, 5, 4, 3, 2, respectively: 0 ⋅ 8 + 3 ⋅ 7 + 7 ⋅ 6 + 8 ⋅ 5 + 5 ⋅ 4 + 9 ⋅ 3 + 5 ⋅ 2 = 0 + 21 + 42 + 40 + 20 + 27 + 10 = 160 The modulus 11 of this sum is calculated. For calculations, an upper case X in the check digit position indicates a check digit of 10. To confirm the check digit, calculate the sum of all eight digits of the ISSN multiplied by its position in the number, counting from the right.
The modulus 11 of the sum must be 0. There is an online ISSN checker. ISSN codes are assigned by a network of ISSN National Centres located at national libraries and coordinated by the ISSN International Centre based in Paris; the International Centre is an intergovernmental organization created in 1974 through an agreement between UNESCO and the French government. The International Centre maintains a database of all ISSNs assigned worldwide, the ISDS Register otherwise known as the ISSN Register. At the end of 2016, the ISSN Register contained records for 1,943,572 items. ISSN and ISBN codes are similar in concept. An ISBN might be assigned for particular issues of a serial, in addition to the ISSN code for the serial as a whole. An ISSN, unlike the ISBN code, is an anonymous identifier associated with a serial title, containing no information as to the publisher or its location. For this reason a new ISSN is assigned to a serial each time it undergoes a major title change. Since the ISSN applies to an entire serial a new identifier, the Serial Item and Contribution Identifier, was built on top of it to allow references to specific volumes, articles, or other identifiable components.
Separate ISSNs are needed for serials in different media. Thus, the print and electronic media versions of a serial need separate ISSNs. A CD-ROM version and a web version of a serial require different ISSNs since two different media are involved. However, the same ISSN can be used for different file formats of the same online serial; this "media-oriented identification" of serials made sense in the 1970s. In the 1990s and onward, with personal computers, better screens, the Web, it makes sense to consider only content, independent of media; this "content-oriented identification" of serials was a repressed demand during a decade, but no ISSN update or initiative occurred. A natural extension for ISSN, the unique-identification of the articles in the serials, was the main demand application. An alternative serials' contents model arrived with the indecs Content Model and its application, the digital object identifier, as ISSN-independent initiative, consolidated in the 2000s. Only in 2007, ISSN-L was defined in the
Leland Stanford Junior University is a private research university in Stanford, California. Stanford is known for its academic strength, proximity to Silicon Valley, ranking as one of the world's top universities; the university was founded in 1885 by Leland and Jane Stanford in memory of their only child, Leland Stanford Jr. who had died of typhoid fever at age 15 the previous year. Stanford was a U. S. Senator and former Governor of California who made his fortune as a railroad tycoon; the school admitted its first students on October 1, 1891, as a coeducational and non-denominational institution. Stanford University struggled financially after the death of Leland Stanford in 1893 and again after much of the campus was damaged by the 1906 San Francisco earthquake. Following World War II, Provost Frederick Terman supported faculty and graduates' entrepreneurialism to build self-sufficient local industry in what would be known as Silicon Valley; the university is one of the top fundraising institutions in the country, becoming the first school to raise more than a billion dollars in a year.
The university is organized around three traditional schools consisting of 40 academic departments at the undergraduate and graduate level and four professional schools that focus on graduate programs in Law, Medicine and Business. Stanford's undergraduate program is the most selective in the United States by acceptance rate. Students compete in 36 varsity sports, the university is one of two private institutions in the Division I FBS Pac-12 Conference, it has gained the most for a university. Stanford athletes have won 512 individual championships, Stanford has won the NACDA Directors' Cup for 24 consecutive years, beginning in 1994–1995. In addition, Stanford students and alumni have won 270 Olympic medals including 139 gold medals; as of October 2018, 83 Nobel laureates, 27 Turing Award laureates, 8 Fields Medalists have been affiliated with Stanford as students, faculty or staff. In addition, Stanford University is noted for its entrepreneurship and is one of the most successful universities in attracting funding for start-ups.
Stanford alumni have founded a large number of companies, which combined produce more than $2.7 trillion in annual revenue and have created 5.4 million jobs as of 2011 equivalent to the 10th largest economy in the world. Stanford is the alma mater of 30 living billionaires and 17 astronauts, is one of the leading producers of members of the United States Congress. Stanford University was founded in 1885 by Leland and Jane Stanford, dedicated to Leland Stanford Jr, their only child; the institution opened in 1891 on Stanford's previous Palo Alto farm. Despite being impacted by earthquakes in both 1906 and 1989, the campus was rebuilt each time. In 1919, The Hoover Institution on War and Peace was started by Herbert Hoover to preserve artifacts related to World War I; the Stanford Medical Center, completed in 1959, is a teaching hospital with over 800 beds. The SLAC National Accelerator Laboratory, established in 1962, performs research in particle physics. Jane and Leland Stanford modeled their university after the great eastern universities, most Cornell University and Harvard University.
Stanford opened being called the "Cornell of the West" in 1891 due to faculty being former Cornell affiliates including its first president, David Starr Jordan. Both Cornell and Stanford were among the first to have higher education be accessible and open to women as well as to men. Cornell is credited as one of the first American universities to adopt this radical departure from traditional education, Stanford became an early adopter as well. Most of Stanford University is on one of the largest in the United States, it is located on the San Francisco Peninsula, in the northwest part of the Santa Clara Valley 37 miles southeast of San Francisco and 20 miles northwest of San Jose. In 2008, 60% of this land remained undeveloped. Stanford's main campus includes a census-designated place within unincorporated Santa Clara County, although some of the university land is within the city limits of Palo Alto; the campus includes much land in unincorporated San Mateo County, as well as in the city limits of Menlo Park and Portola Valley.
The academic central campus is adjacent to Palo Alto, bounded by El Camino Real, Stanford Avenue, Junipero Serra Boulevard, Sand Hill Road. The United States Postal Service has assigned it two ZIP Codes: 94305 for campus mail and 94309 for P. O. box mail. It lies within area code 650. Stanford operates or intends to operate in various locations outside of its central campus. On the founding grant: Jasper Ridge Biological Preserve is a 1,200-acre natural reserve south of the central campus owned by the university and used by wildlife biologists for research. SLAC National Accelerator Laboratory is a facility west of the central campus operated by the university for the Department of Energy, it contains the longest linear particle accelerator in the world, 2 miles on 426 acres of land. Golf course and a seasonal lake: The university has its own golf course and a seasonal lake, both home to the vulnerable California tiger salamander; as of 2012 Lake Laguni
Daniel Coit Gilman
Daniel Coit Gilman was an American educator and academic. Gilman was instrumental in founding the Sheffield Scientific School at Yale College, subsequently served as the third president of the University of California, as the first president of Johns Hopkins University, as founding president of the Carnegie Institution, he was co-founder of the Russell Trust Association, which administers the business affairs of Yale's Skull and Bones society. Gilman served for twenty five years as president of Johns Hopkins. S." Born in Norwich, the son of Eliza and mill owner William Charles Gilman, a descendant of Edward Gilman, one of the first settlers of Exeter, New Hampshire, of Thomas Dudley, Governor of the Massachusetts Bay Colony and one of the founders of Harvard College, of Thomas Adgate, one of the founders of Norwich in 1659. Daniel Coit Gilman graduated from Yale College in 1852 with a degree in geography. At Yale he was a classmate of Andrew Dickson White, who would serve as first president of Cornell University.
The two were members of the Skull and Bones secret society, traveled to Europe together after graduation and remained lifelong friends. Gilman was a member of the Alpha Delta Phi Fraternity. Gilman would co-found the Russell Trust Association, the foundation behind Skull and Bones. After serving as attaché of the United States legation at St. Petersburg, Russia from 1853 to 1855, he returned to Yale and was active in planning and raising funds for the founding of Sheffield Scientific School. Gilman contemplated going into the ministry, took out a license to preach, but settled on a career in education. From 1856 to 1865 Gilman served as librarian of Yale College, was concerned with improving the New Haven public school system; when the Civil War broke out, Gilman became the recruiting sergeant for the Norton Cadets, a group of Yale graduates and faculty who drilled on the New Haven Green under the oversight of Yale professor William Augustus Norton. In 1863, Gilman was appointed professor of geography at the Sheffield Scientific School, became secretary and librarian as well in 1866.
Having been passed over for the presidency of Yale, for which post Gilman was said to have been the favorite of the younger faculty, he resigned these posts in 1872 to become the third president of the newly organized University of California. His work there was hampered by the state legislature, in 1875 Gilman accepted the offer to establish and become first president of Johns Hopkins University. Before being formally installed as president in 1876, he spent a year studying university organization and selecting an outstanding staff of teachers and scholars, his formal inauguration, on 22 February 1876, has become Hopkins' Commemoration Day, the day on which many university presidents have chosen to be installed in office. Among the legendary educators he assembled to teach at Johns Hopkins were classicist Basil Lanneau Gildersleeve, mathematician James Joseph Sylvester, historian Herbert Baxter Adams and chemist Ira Remsen. Gilman's primary interest was in fostering advanced instruction and research, as president he developed the first American graduate university in the German tradition.
The aim of the modern research university, said Gilman, was to "extend by minute accretions, the realm of knowledge" At his inaugural address at Hopkins, Gilman asked: "What are we aiming at?" The answer, he said, was "the encouragement of research and the advancement of individual scholars, who by their excellence will advance the sciences they pursue, the society where they dwell." In 1884, Gilman was elected a member of the American Antiquarian Society. Gilman was active in founding Johns Hopkins Hospital and Johns Hopkins Medical School, he founded and was for many years president of the Charity Organization of Baltimore, in 1897 he served on the commission to draft a new charter for Baltimore. From 1896 to 1897, he was a member of the commission to settle the boundary line between Venezuela and British Guiana. Gilman served as a trustee of the John F. Slater and Peabody education funds and as a member of John D. Rockefeller's General Education Board. In this capacity, he became active in the promotion of education in the southern United States.
He was president of the National Civil Service Reform League and the American Oriental Society, vice president of the Archaeological Institute of America, executive officer of the Maryland Geological Survey. He retired from Johns Hopkins in 1901, but accepted the presidency of the newly founded Carnegie Institution of Washington, his books include biographies of James Monroe and James Dwight Dana, a collection of addresses entitled University Problems, The Launching of a University. Gilman married twice, his first wife was daughter of Tredwell Ketcham of New York. They married on December 4, 1861, had two daughters: Alice, who married Everett Wheeler. Mary Ketcham Gilman died in 1869, Daniel Coit Gilman married his second wife, Elizabeth Dwight Woolsey, daughter of John M. Woolsey of Cleveland and niece of Yale president Theodore Dwight Woolsey, in 1877. Daniel Gilman's brother Dr. Edward Whiting Gilman was married to Julia Silliman, daughter of Yale Professor and chemist Benjamin Silliman. Daniel Coit Gilman died in Connecticut.
The original academic building on the Homewood campus of the Johns Hopkins University
Benjamin Silliman Jr.
Benjamin Silliman Jr. was a professor of chemistry at Yale University and instrumental in developing the oil industry. His father Benjamin Silliman Sr. a famous Yale chemist, developed the process of fractional distillation that enabled the economical production of kerosene. In 1855, Silliman Jr. wrote a report for $526.08 on Pennsylvania rock oil and its usefulness as an illuminant that convinced investors to back George Bissell's search for oil. In the 1850s the market for light-producing liquid fuels was dominated by coal oil and by an inadequate supply of whale oil. However, George Bissell, a lawyer from New York, his partner Jonathan Greenleaf Eveleth had a revolutionary idea, they thought there was a possibility of the crude “rock oil”, cropping up in western Pennsylvania being used as an illuminatory substance. At the time, rock oil was nothing but a smelly hindrance to the well-diggers of the region, with some limited medicinal properties, yet Bissell and Eveleth, after realizing how flammable the liquid was, believed there was great money to be made in producing rock oil commercially, marketed as lamp fuel and such.
But they needed someone—an important, well-respected scientist—whose name they could attach to their financial venture, to research the material to find out whether or not it could be used in such a manner. They found Benjamin Silliman Jr. professor of chemistry at Yale. Benjamin Silliman’s primary contribution to the chemical world, the world as a whole, involved the fractional distillation of petroleum, analyzed for the purpose of its qualities of illumination, he was asked to do this as one of the most prominent chemists of his time, his report on the subject afterwards had far-reaching influences. The immensely important main idea of his report was that distilled petroleum burned far brighter than any fuel on the market, except those that were far more expensive and less efficient, his conclusion was that petroleum is “a raw material from which...they may manufacture a valuable product.” Silliman noted that this material was able to survive through large ranges of temperature, the possibility of it being used as a lubricant.
The impact of the discovery of petroleum as a high-quality illuminator is obvious. At the time, however and Eveleth brought some people together to form the “Pennsylvania Rock Oil Company”- shortly after to be renamed the “Seneca Oil Company,” after another common, regional name for petroleum. Edwin Drake was in charge of drilling the well, after many setbacks revolving around the lack of money, he struck oil in quiet, Titusville, Pennsylvania on August 27, 1859; the scenery of Titusville changed overnight. Oil derricks and towns filled with get-rich-quick speculators filled the newly named Oil Creek; the holes were unremarkable by the standards of today. However, the influence of these oil wells, Benjamin Silliman Jr.’s report confirming the use of petroleum as an illuminant, was massive. Important in Bissell’s idea and Silliman’s discovery was the use of rock oil for lubrication of the many moving parts in the mechanical age soon to come. Silliman's fame as an oil pioneer put him in great demand as a consultant to mining companies, a line of work in which he was much less successful.
His great overestimate of the ore reserves in the Emma mine near Alta, Utah contributed to a financial fiasco for British investors when the mine exhausted its ore years ahead of Silliman's prediction. He reported optimistically on the mines at Lake Valley, New Mexico, which were money-losers for shareholders. Benjamin Silliman Sr. was the largest inspiration in Benjamin Silliman Jr.’s career. Both Sillimans were eminent professors of the subject at Yale University; the father was the first professor of chemistry at Yale in 1802, studied the subject at the Medical College of the University of Pennsylvania. He was professor of natural history --, defined as geology, mineralogy and botany -- all of which he studied at the University of Edinburgh, his work in those areas established Yale’s rock and mineral collection as the most significant in America at the time. With his help, Yale became the foremost center of science in 19th-century America. Benjamin Silliman Sr. is considered by many to be the father of American chemistry.
With the exception of Silliman Jr.’s involvement in the oil boom, there are many similarities between the careers of both Sillimans. Benjamin Silliman Jr.'s wife was a descendant of Joel Root, an early entrepreneur and supercargo on the sealing ship Huron. Root wrote a journal, A Voyage Around the World Made by Joel Root 1802-1806 published in a limited edition of eight copies by Alice Belknap Hawkes, descendant of the Silliman and Forbes families. One of Joel Root's daughters, Charlotte Antoinette Root, was the grandmother of Susan Huldah Forbes. Susan was the daughter of Charlotte Antoinette Root Forbes. Susan Huldah Forbes was the wife of Benjamin Silliman Jr; the Prize: The Epic Quest for Oil and Power The Story of Oil In Pennsylvania "Benjamin Silliman." Dictionary of American Biography Base Set. American Council of Learned Societies, 1928–1936. Wright, Arthur W.. Biographical Memoir of Benjamin Silliman. Washington, DC: National Academy of Sciences. Pp. 115–141