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In spite of a considerable amount of fundamental research on the problem since the turn of the century, the subject of photosensitivity remains a challenging portion of the unknown in dermatology. This book is a treatise on two parts of this field, photodynamic action and diseases caused by light. The author, as a biophysicist and a physiologist, analyzes the relation between the two and points out how basic principles in physics and in photochemistry may be employed profitably to establish a rational system of classification of these diseases in animals and in man.
The volume consists of four parts and has a total of twenty-four chapters. It is planned that each section of the book may be read independently of the others, although a knowledge of fundamentals is essential to the understanding of the whole. This is comforting to the clinician, who in part 1 is confronted with a formidable