Which edition of the Boy Scout Handbook should I get?

As some of you know, I home-school my son. We use a broad range of materials to get what we feel is a rounded education that takes advantage of his curiosity and interests.

My husband and I have been talking about going hiking and camping more often, and I was thinking about incorporating these activities into Ian’s education.

I’m looking for things like knot-tying, and identifying edible plants, and other practical skills.

A quick Google search shows several versions of the Boy Scout Handbook available in PDF form online, but I figured if some of our Jellies have real Scout experience, you might know which will serve our needs best.

We have no plans to enroll in Scouting, at least until the organization better fits our lifestyle. From what I understand, though, the Scouts have modernized with the times and focuses less on the practical survival skills mentioned above, so I’m pretty sure I’m not looking for the most recent version of the Handbook.

Any help and related discussion or suggestions of additional material appreciated!