The Core Historical Literature of Agriculture (CHLA)
... a core electronic collection of agricultural texts published between the early nineteenth century and the middle to late twentieth century. Full-text materials cover agricultural economics, agricultural engineering, animal science, crops and their protection, food science,forestry, human nutrition, rural sociology, and soil science.”
The Internet Directory of Botany
"... an index to botanical information available on the Internet, compiled by Anthony R. Brach [brach (at) oeb.harvard.edu] (Harvard University Herbarium, Cambridge / Missouri Botanical Garden, St. Louis, USA, www page), Raino Lampinen (Botanical Museum, Finnish Museum of Natural History, University of Helsinki, Finland; www page), Shunguo Liu [cathay (at) cathay.net] (SHL Systemhouse, Edmonton, Canada; www page) and Keith McCree (Oakridge, Oregon; www page).”
Plant Images
“This web site provides structured access to a teaching collection of plant images representing over 250 families and 1000 genera of vascular plants.”
Plants database
from the U.S. Department of Agriculture.
