Daniel Dunglas Home was a Scottish physical medium with the reported ability to levitate to a variety of heights, speak with the dead, and to produce rapping and knocks in houses at will. His biograph
Home by Nadar
Daniel Dunglas Home, 1865-1870
William Cullen Bryant, a poet, and editor of the New York Evening Post, who witnessed one of Home's séances
Robert Browning, who wrote "Sludge the Medium" about Home
Sir William Crookes was an English chemist and physicist who attended the Royal College of Chemistry, now part of Imperial College London, and worked on spectroscopy. He was a pioneer of vacuum tubes,
Crookes in 1906
Blue plaque, 7 Kensington Park Gardens, London
The element thallium, discovered by Crookes
The mineral crookesite, a selenide of copper, thallium and silver (Cu 7(Tl, Ag)Se 4), named for Crookes