A manual for Harry Potter Spells & Potions Chemistry I Set No. 501.

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Notebook containing 49 pages of laboratory notes taken by Charles F. Chandler in Göttingen as a pupil of Professor Friedrich Wöhler in 1854 and in Berlin as a pupil of Professor Heinrich Rose in 1855. In these pages,…

Portrait of Ira Remsen (1846-1927). Along with Constantin Fahlberg, Remsen discovered the artificial sweetener saccharin in 1879.

A native of New York City, Remsen received his M.D. from the Columbia University…