Rafowell,
Thanks for the heads up on that one. I perused the fifth edition and it looks very interesting. I will have to download a copy.
Funny thing though, whoever scanned this copy:
5th ed (1872):
https://archive.org/details/arttravelorshif00unkngoogMust have been seriously having some issues. You will find the first several pages are hands, fingers articles of clothing and who knows what else. If that is not enough there are the occasional pages that look like they were scanned several inches away.
In regards to survival mirrors, I have McCanns excellent book and finally received the "real deal" from his company. I have to give them high marks :-)
Thank goodness it was not a lesson I had to learn in while "Stranded in the jungle, about a thousand miles away!"
Regards!