The Digital Special Collections of the American Museum of Natural History’s Research Library provides access to a rich collections of digitized archival photographic images, art and memorabilia images and Rare Book Collection illustrations
The Biodiversity Heritage Library (BHL) is a consortium of natural history and botanical libraries that cooperate to digitize and make accessible the legacy literature of biodiversity held in their collections and to make that literature available for open access and responsible use as a part of a global “biodiversity commons.” The BHL consortium works with the international taxonomic community, rights holders, and other interested parties to ensure that this biodiversity heritage is made available to a global audience through open access principles. In partnership with the Internet Archive and through local digitization efforts, the BHL has digitized millions of pages of taxonomic literature, representing tens of thousands of titles and over 100,000 volumes.
This website is for teachers of biology in schools and colleges. It is a collection of experiments that demonstrate a wide range of biological concepts and processes.
Great source of all sorts of good stuff.
Over 100,000 high resolution images including manuscripts, paintings, etchings, early photography and advertisements are now freely available through Wellcome Images.