Botany
- Classic Works in Herbal Medicine: SouthWest School of Botanical Medicine -Describes and makes available the work of John Uri Lloyd, Otto Mausert, Benjamin Colby
- Digital Collection of Canadian Flora and Botany: University of Toronto Thomas Fisher Rare Book Library – The Agnes Chamberlin Collection consists of original paintings of Canadian flora and mushrooms by Agnes Chamberlin (1833–1913), 1863 to the 1900s.
- Digital Library: The College of Physicians of Philadelphia – An image database of nearly 1,000 images with strengths in the history of anatomy and botanical medicine. Highlights include images from rare incunabula previously unavailable online, unusual selections from more popular early modern anatomists, and over 300 photos from the Philadelphia General Hospital Photograph Collection
- Joseph Hooker Collection: Royal Botanic Gardens, Kew – The personal and scientific correspondence of Joseph Hooker, 19th century naturalist and explorer who pioneered the discipline of geographical botany
- Marianne North Gallery Online: Royal Botanic Gardens, Kew – An online gallery of 19thcentury biologist and botanical artist Marianne North’s 833 paintings depicting more than 900 species of plants.
- Nathaniel Wallich Collection: Royal Botanic Gardens, Kew – The plant drawings, specimens, and correspondence of 19th century surgeon and botanist Nathaniel Wallich.
- Turning the Pages Online: National Library of Medicine – digitized images of rare and historic books in the history of medicine including Elizabeth Blackwell’s A Curious Herbal
- William Roxburgh’s Flora Indica: Royal Botanic Gardens, Kew – Scottish surgeon and botanist William Roxburgh’s three-volume Flora Indica, published posthumously in 1832, with the illustrations he commissioned.