Peter Carl Ludwig Schwarz
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Peter Carl Ludwig Schwarz, referred to mostly as Ludwig Schwarz, was a Baltic German astronomer of Imperial Russia, explorer, and professor of astronomy at the University of Dorpat honored with the Ko
Professor Ludwig Schwarz, circa 1890
Dorpat Observatory. Painting by August Matthias Hagen, father-in-law to Schwarz.
Radde's Warbler (Phylloscopus schwarzi)
Ludwig Schwarz, 1870. Painting by Julie Wilhelmine Hagen-Schwarz, his wife.
Radde's warbler
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Radde's warbler is a leaf warbler which breeds in Siberia. This warbler is strongly migratory and winters in Southeast Asia. The genus name Phylloscopus is from Ancient Greek phullon, "leaf", and skop
Peter Carl Ludwig Schwarz
…During his tenure in later life he conducted studies of one third of the 10,000 celestial stars visible at Tartu. Radde's warbler, a leaf warbler bird that breeds in Siberia and winters in southeast Asia, bears a scientific name (Phylloscopus schwarzi) that commemorates Schwarz…
Radde's Warbler Thailand S4E1407