Includes digitized maps, photographs, and published materials, as well as field notes, letters, and a unique range of manuscript materials on selected expeditions between 1626 and 1953; from Harvard University Library.

Find journals, books, reports, and personal documents to explore scientific, technical, and medical knowledge in the 19th Century

A consortium of natural history and botanical libraries that cooperate to digitize the legacy literature of biodiversity and to make that literature available for open access and responsible use as a part of a global “biodiversity commons.”

Digitally scanned 19th or early 20th century books from the University's mathematics collection

Digitized serials, monographs, broadsides, incunabula, manuscripts, etc. from Harvard University Library.