Mr. Truax has attempted something in this book that is unique, to say the least, and he has done his work well. The task of giving us such a work as is attempted in this volume is a very hard one, for the reason that the author does not pretend to be a surgeon, and yet has quite often to give advice which is not supposed to come from any one but a surgeon. The position which he occupies, and from which he writes, is that of a manufacturer of instruments, and he lays no claim to anything further. He has carefully avoided, therefore, stepping over the boundary, although at times he seems to have gotten very close to the edge.
Each branch is taken up and instruments are grouped under the particular department to which each belongs. The opening chapter is on the history of instruments, which is followed