The first book on domestic homeopathy published in the United States. The names of the medicines are not given, but are referred to by numbers. Digital facsimile from the National Library of Medicine at this link. 

An early American homeopathic title on The Effects of Snake Poison Comparatively Arranged for Therapeutic Use.  Hering assumed an analogy between snake venom and bacterial toxins. He drew his work from provings and testing of several snake venoms.

Hering was called the “father of American homeopathy.” His 10-volume work is a record of confirmed symptoms that Hering and his colleagues observed over 50 years of practice.