- 1926 (Original design)
- Circa 1957 (Date attributed to slide)
Graphic representation of the periodic table of chemical elements in the style of a symmetrical series table constructed as a quadrangle. This type of table was originated by Estonian-born German chemist Andreas von…
Portrait of (left to right) Dr. Albert Baird Hastings (1895-1987) and Dr. James A. Hawkins posed in a laboratory at the Hospital of the Rockefeller Institute for Medical Research (H.R.I.M.R.). Best known for the study…
- Circa 1926
Portrait of Lammot du Pont II (1880-1952), former President of the E.I. du Pont de Nemours & Company (1926-1940) and Chairman of the Board of Directors.