Department
of Orthodontic Edited
Abstracts and Reviews by
DR. J. A. SALZMANN, NEW YORK CITY All communications concerning further information about abstracted material and the acceptance of articles or books for consideration in this department should be addressed to Dr. J. A. Salzmann, 654 Madison Avenue, New York City
The Priueiples and Practice of Industrial Medicine: Edited by Fred J. Wampier, M.D., Professor, Private and Industrial Medicine, Medical College of Virginia; and contributors. Pp. 579. Price $6.00. Baltimore, Williams & Wilkins Company. Industrial medicine has long been a distinct specialty of medical practice. Even during the Middle Ages it was well known that certain occupation8 left their mark on the health of the worker. Industry, even before the days of social legislation, found it economical to pay attention to the health of the worker, especially if considerable expense was involved in training him. It is surprising to find that, while the nurse has been included in this volume, no mention is made of the dentist. Among the subjects treated are the effects of temperature and humidity on industrial workers, fatigue, a survey of substances which cause occupational poisoning, industrial lead exposure, and lead poisoning. Here mention is made of the “lead line.” The statement is included that “Obvious deposits of lead sulphide are seen in the gums of persons with no demonstrable symptoms or signs of intoxication, but the development and extension of a lead line may be accepted as a notation of progressive lead absorption. ’’ Among the contributors are many accepted specialists in industrial medicine, which gives this book authoritative standing. Contact Dermatitis Resulting From the Manufacture of Synthetic Resins and Methods of Control: By Stephen D. Lackey, B.S., M.D., E.A.C.A., Lancaster, Pa., J. Allergy 15: 188-195, May, t944. The prineipal synthetic resins manufactured in the United States are: 1. Phenol-formaldehyde resins sold under various trade names, such as Bakelite, Durite, Durez, Resinox, Indur, and Catalin. 2. Urea-formaldehyde resins, sold under trade names, such as Beetle and Plaskon. 3. Coumarone resin made from coal tar residue. 4. Ester gums which are natural resins, such as rosin, dammar, copal, in which the acid df the resin has been combined with glycerol. 5. The glyptal resins, which are a combination of glycerol and an organic acid, such as, phthalic and malleic acids. 624