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Now showing items 21-30 of 37
Candid photograph of Lessing A. Kahn
(Johns Hopkins University Sheridan Libraries, 1952)
Candid photograph of Kahn at approximately 45 years old in his office.
Candid photograph of William David McElroy at McCollum-Pratt Institute
(Johns Hopkins University Sheridan Libraries, 1952)
Candid photograph of McElroy working in a lab. The photograph has a caption on the back that reads "Solution is again evaporated and put on second column, which takes more impurities from luciferin."
Candid photograph of William David McElroy at McCollum-Pratt Institute
(Johns Hopkins University Sheridan Libraries, 1952)
Candid photograph of McElroy emptying a net of fireflies into a glass bowl.
Candid photograph of William David McElroy at McCollum-Pratt Institute
(Johns Hopkins University Sheridan Libraries, 1952)
Candid photograph of McElroy paying three boys for their fireflies.
Candid photograph of William David McElroy and a boy in a lab at McCollum-Pratt Institute
(Johns Hopkins University Sheridan Libraries, 1952)
Candid photograph of Scott Ellsworth Forbush
(Johns Hopkins University Sheridan Libraries, 1952)
Candid photograph of Forbush at approximately 65 years old talking in his office.
Candid photograph of Gerald Willen
(Johns Hopkins University Sheridan Libraries, approximat)
Candid photograph of Willen at approximately 50 years old in a gallery at an art museum.
Candid photograph of Thornton Leigh Page
(Johns Hopkins University Sheridan Libraries, 1952)
Candid photograph of Page at approximately 45 years old smoking at a desk.
Photograph of Philip Warren Thayer
(Johns Hopkins University Sheridan Libraries, 1951)
Portrait of Thayer at approximately 55 years old.
Photograph of Philip Warren Thayer
(Johns Hopkins University Sheridan Libraries, 1951)
Portrait of Thayer at approximately 18 years old.