Perhaps not the most "bushcraft oriented", but "Pocket Ref" by Glover is quite good.
Some stuff I've found in it;
Knots
Meteorology basics
First aid
Average temperatures of major cities
Magnetic declination charts
Morse, semaphore, braille alphabets
Map symbols
Lists of batteries, voltages, amperages
Firewood / fuel comparisons (btu's, etc)
ice thickness reference
Windchill / heat loss tables
strength of wooden beams
oh... and it covers a bunch of other topics too - from geology to subatomic physics, yet fits in a pocket and costs $10 on Amazon.
It goes on and on. If you were in a situation where you'd have to re-build or want to take on a DIY project, it is an invaluable reference.
Reviews are overwhelmingly positive.
http://www.amazon.com/Pocket-Ref-Thomas-J-Glover/dp/1885071337/ref=tag_dpp_lp_edpp_img_ex
Only downside... paper is a bit thin (has to be to fit in that size), and I'm not sure how well it would stand up to the elements.
Some stuff I've found in it;
Knots
Meteorology basics
First aid
Average temperatures of major cities
Magnetic declination charts
Morse, semaphore, braille alphabets
Map symbols
Lists of batteries, voltages, amperages
Firewood / fuel comparisons (btu's, etc)
ice thickness reference
Windchill / heat loss tables
strength of wooden beams
oh... and it covers a bunch of other topics too - from geology to subatomic physics, yet fits in a pocket and costs $10 on Amazon.
It goes on and on. If you were in a situation where you'd have to re-build or want to take on a DIY project, it is an invaluable reference.
Reviews are overwhelmingly positive.
http://www.amazon.com/Pocket-Ref-Thomas-J-Glover/dp/1885071337/ref=tag_dpp_lp_edpp_img_ex
Only downside... paper is a bit thin (has to be to fit in that size), and I'm not sure how well it would stand up to the elements.