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NEURAL REGULATION OF FOOD AND WATER INTAKE Annals of the New York Academy of Sciences (1969), 157, 531-1216

respiratory failure is due to neuromuscular disease than when it is due to disease of the lungs. The style is simple, almost conversational, and there are ample illustrations which serve to demonstrate graphically problems which may be difficult to describe succinctly in the text. Laplace's law governs the pressure inside a bubble which an alveolus closely resembles, and the surfactant, without which lungs will not expand, affects the working of this law in the lungs. The relationship can be difficult to explain, but the author achieves it well with a diagram of two hands squeezing two balloons. He has a similar facility for illustrating other problems. References for each chapter are limited but include most of the basic work. The book can be recommended as a valuable introduction to the subject. J. M. K. SPALDING