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This book is a collective work. The demand for knowledge of the physical, chemical and biologic basis of roentgenology has increased. The physics of x-rays by Stenstrom Newell provides a review of the various aspects of therapeutic x-ray equipment; he describes the instruments for calibration (tubes, filters and other materials necessary for roentgen treatment, such as tables, control stands and the proper choice of space). Taylor and Pohle consider dosimetry. Superficial and depth doses and the relation to the percentage volume are distinctly treated, and the difference in their application is described. The importance of a definite plan of treatment is well developed. In a further chapter, Ward discusses radiology and radiopathology; that is, the reaction of cells, skin, tissue, blood and internal organs to the x-rays. Finally, Taylor develops the idea of the tolerance dose and protection from the x-rays. The recommendations of the Advisory Committee on X-Ray and
Theoretical Principles of Roentgen Therapy. JAMA. 1938;110(26):2176. doi:10.1001/jama.1938.02790260050031