The Family Companion and Physician: Now Available!
This semi-short work is a fine one, because it combines herbal remedies (the recipes thereof, that is) with what amounts to diagnosis, and bridges the gap between prior works (which tended to be quite superstitious) and latter ones (which were more scientific in the truly modern sense. In the mid 19th century, the scientific and the spiritual segued into one another seamlessly. The incantations of grimoires slowly got displaced by the apothecary receipts of the more recent era. It includes as well a short lecture on health which is at times hilarious, blaming "self abuse" (now known as masturbation) for lunacy and various developmental disabilities.
I cannot recommend the concoctions utilized here in this booklet but some of the species and preparations are indeed chemically active and at the time would likely have been tested with at least some degree of rigor. It is an interesting look at the eras' medicinal lore. One of the best, actually.