The frontispiece of this excellent study is a reproduction of a page of a book published in 1550 telling of an interesting condition known as "alopecya." Dr. Savill discusses the structure and physiology of the hair, the occurrence of gray hair, cutting and singeing, brushing and combing, elastic properties and common disorders. She then takes up the various forms of baldness, infection and parasitism, and concludes with a chapter on hirsuties. The book provides several pages of useful prescriptions. The volume is a standard one and will be found a most useful reference book by all physicians especially concerned with the subject. Among the most recent topics discussed is the use of pituitary in alopecia and in psoriasis. Here the author merely mentions the method as being worthy of trial without any conclusion as to its merit.