I believe that the more you know the less you have to carry, that idea was popularized by Mors Kochanski for bushcraft, but I believe it applies universally.
This PDF on Popular Chemistry is old, but the knowledge contained is useful to preppers.
Anything scientists could do on wood stoves in the late 1800s are still able to be accomplished in this new century. That knowledge allowed for the industrial revolution. You cannot tell me that that the popular chemistry of the late 1800’s and early 1900’s would not be of use to the modern man in a catastrophic disaster.
Even if not, this book contains information still taught today, and a free PDF sure beats having to buy a $100 textbook for a $1000 college course. You may not get credit toward a piece of paper, but knowledge is power, and the the more you know, the more you can do. Knowledge is the only thing you own that cannot be stolen from you.
If thats not enough to make you want to read this book, remember that dynamite was common chemical knowledge during this period and people were making nitroglycerin in their cabins so they could work on their own mines.
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