The international scientists' directory : containing the names, addresses, special departments of study, etc., of professional and amateur naturalists, chemists, physicists, astronomers, etc., etc. in all parts of the world / compiled by Samuel E. Cassino.

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The international scientists' directory : containing the names, addresses, special departments of study, etc., of professional and amateur naturalists, chemists, physicists, astronomers, etc., etc. in all parts of the world / compiled by Samuel E. Cassino. Public Domain Mark. Source: Wellcome Collection.