Posted by Tom Napier on August 23, 2011 at 18:58:40 user Didymus.
In Reply to: Re: Ransome inspired posted by Ed Kiser on August 23, 2011 at 09:40:10:
Ed's list reminds me how I know I first read Pigeon Post in or before 1951. I still have a school notebook in which I had drawn a blue test-tube with the date and a note about the effect of adding ammonia to solutions of copper salts. I did this experiment many times, starting with copper sulphate crystals. In my youth, nine-year-olds didn't get to play with concentrated acids. (They did make gunpowder but that's another story.)