This book assembles many data bearing upon the problem of intervertebral disc disease, and it will make good reading for all interested in the entity. It is produced in handsome style with excellent engravings and with colored plates of histologic preparations made with a stain developed by the author.
The author believes that a systemic disease is the cause of symptom-producing alterations of the intervertebral disc. The study leading to the writing of the book was undertaken in an effort to support this hypothesis. The author gives an excellent review of the anatomy and histology of the disc. In discussing nerve root zones of anchorage and their role in pain production by disc protrusions, he says, "Hence, the cervical discs should be less prone to displacement than discs at lower levels. But this is not so." No basis is given for this statement, yet certainly it is true at the