Das Röntgenschichtbild des Ohres. The Tomogram of the Ear

This profusely illustrated book represents a great deal of work on the part of the authors. Each illustration is accompanied by an easily understandable line drawing labeled in detail. The text is in both German and English in parallel columns. The engraving of the illustrations occasionally leaves something to be desired. The world literature on tomography of the temporal bone is reviewed, and the authors describe their own techniques in detail. Hypoclinoid blurring has been produced by the Massiot "Polytome." Methods are presented for taking 1-mm. sections through the temporal bone in six different positions. The normal anatomy of the temporal bone is depicted in 62 illustrations. The remaining films demonstrate a wide variety of lesions, including atresias, fractures, infections, and tumors.

The authors' introduction correctly states that tomography is to be considered an amplification of, not a substitute for, conventional mastoid films taken with good technique in properly chosen