""Letter to John Forbes, On His Article Entitled Homeopathy, Allopathy, And Young Physic"" is a book written by William Henderson and published in 1846. The book is a response to an article written by John Forbes, a prominent physician and medical writer of the time, in which he criticized the practice of homeopathy and defended allopathic medicine. In his letter, Henderson argues in favor of homeopathy, presenting evidence and arguments to support...