Thaks for the tip on the Army Survival Manual. I found it and it's a good resource, even though the illustrations have been stripped out of it :-( (By the way, it is in iSilo format, so be prepared to download that also, both can be had for free).<br><br>I also found another free program on www.PalmGear.com called BioChem that has information on biological and chemical warfare agents including symptoms, treatments, etc.<br><br>Both could be handy references. If anybody finds an illustrated guide to edible plants for Palm couputers, please post.<br><br>Thanks.