Primitive Physic: Now Available!
This wonderful text dates all the way back to the middle of the 18th century. Mostly herbal and folk remedies, it is an extensive receipt-style work covering over 100 specific conditions for which, often, there are several distinct methods of cure listed. Some of the remedies it lists are dangerous and as such I will mention here that in no way do I condone or encourage its use as a medical guide.
Some things are mentioned more frequently within Wesley's treatise here; agrimony, chamomile, vitriol, and a few other materials are listed dozens of times; others, such as quicksilver, are less frequently employed in his physic system. Overall, it's one of the more comprehensive guides to folk remedy from its era, predating many similar types of work that came half a century or more after its manufacture.