On The Treatment Of Psoriasis By An Ointment Of Chrysophanic Acid is a book written by Alexander John Balmanno Squire and originally published in 1878. The book explores the use of chrysophanic acid, a chemical compound found in certain plants, as a treatment for psoriasis, a chronic skin condition characterized by red, scaly patches. Squire discusses the history of psoriasis treatment and the limitations of existing therapies before introducing his...