This volume is practically two books, one being devoted to x-rays as a diagnostic and the other as a therapeutic agent. Part one is written by Director Caldwell of the Gibbs X-ray Laboratory of New York, a man thoroughly competent, through practical experience, to write on the subject assigned him. In an introductory chapter is given a brief review of the experimental work which led up to the discovery of x-rays, then follow a description of the apparatus used, one chaptar being devoted to the Essentials of an X-ray Outfit, another to X-ray Tubes, one to Induction Coils, Interrupters and Their Management, one each to Static Machines and Their Management, to Fluoroscopy, to Photographic Materials and Their Manipulation, and sources from which the electric current may obtained.
The chapter on Radiography is a most important and valuable one. In it are given in detail practical suggestions for