This serviceable little annual, the twenty-sixth of its series, is always welcome. It is a credit to the editor, Dr. White, for his untiring efforts to make it a correct reflection of the annus medicus, as each flows by, of the American metropolis and a large adjoining territory. In addition to being a model of completeness and accuracy, it has a healthful policing influence over the quackish elements in medical practice. There has not been a year during the past twenty-six wherein it has not been threatened by some of the "irregulars," or by some whose names are omitted from registration "for cause," but no serious detriment has yet befallen the book from these threats. The book is full of information regarding the hospitals, medical colleges and societies of New York and vicinity. It is useful, reliable, and its morale is good, and on these grounds it is thrice welcome.