Public domain photograph of laboratory, scientist, free to use, no copyright restrictions image - Picryl description
Available also through the Library of Congress web site in two forms: as facsimile page images and as full text in SGML. Printed Ephemera Collection; Portfolio 163, Folder 21.
Available also through the Library of Congress web site in two forms: as facsimile page images and as full text in SGML. Printed Ephemera Collection; Portfolio 163, Folder 21.