Cornell University's agriculture and home economics databases

I stumbled upon these collections of online books and journals recently. First, there's the Core Historical Literature of Agriculture, which contains links to thousands of e-books or journals on everything from soil management to barn building. Then, there's the Home Economics Archive that covers everything from plumbing to sewing. Both of these include publications going all the way back to the early 1800s.

For those interested in beekeeping (which is a bit controversial in vegan circles, I know), they have The Hive and the Honeybee Collection -- links to about 50 or 60 e-texts of older books on the topic.