Bushcraft by Richard Graves
This is now out of print. There are copies on Amazon and at least one PDF download available on the web.
It was written for Australia but it still has a lot of good material in it. Especially on navigation.
(It is not the same as Kochanski's book, which I also like a lot.)

Camping and Woodcraft by Horace Kephart.
Almost a hundred years old, but it is a true gem. It is also available used and there might be a download or torrent for it.
There was a recent reprint but I think that is out of print now too.

For wilderness medicine Wilderness First Aid by The Red Cross is a good read.
Wilderness Medicine (Beyond First Aid) by Dr William Forgey is another good text.

Basic Butchering of Livestock & Game by Mettler is pretty much a classic text on the subject.

The Complete Guide to Canning and Preserves by the US Department of Agriculture is also the best plain language text on canning and has been for many years.
It can be purchased new and there are free downloads for it too.