Compiled over 43 years by one man this index to every living animal discovered between 1758 and 1850 is still considered the essential reference for zoologists and paleontologists.
Portraits of scientists, engineers, and inventors collected by Bern Dibner to complement he thousands of scientific books and manuscripts in the library he founded.
Video of a lecture by Dr. Laura J. Snyder based on her recent book "The Philosophical Breakfast Club: Four Remarkable Friends who Transformed Science and Changed the World"
After four years at sea, the U.S. Exploring Expedition returned with a bounty of data, specimens and artifacts that would later come to the Smithsonian.
