While browsing titles related to prepping on Amazon I found the 1894 Frontier Doctor's Medical Handbook: Book 1: Home Remedies, General Health and Wellnessavailable for FREE in the Kindle Edition. Also available is 1894 FRONTIER DOCTOR'S MEDICAL HANDBOOK: Book 2: How to Gather and Prepare Medicinal Herbs and Barks, Poultices, and Select Emergency Measures (1894 FRONTIER DOCTOR'S HANDBOOK) for $2.99, which seems like a pretty good deal.
Whether or not you buy Book 2, you should click on the link for Book 1 and get it while it's free!
Standard Disclaimer: Any Ebooks listed as free were being offered by Amazon as free at the time of posting. Check to be sure they are still free before you click and "purchase". If the free period is over and you click on it anyway I am not responsible!