I found this book today via Jerry Pournelle's site.
It's the sort of reference you'd want around after a TEOTWAWKI event. Or just to learn how to mix up stuff in the garage sure to piss off the Feds. ;-)
The PDF version is a facsimile of the c.1914 original. It's rather large at over 800 pages and 116 MB but whoever created the PDF also OCRed the file, so it's searchable. If you have a slower connection or an older computer you'll probably be better off with the .txt version, which is only 3.5MB.
I may print it out, two pages to a sheet, and stick it in a binder.