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This volume, which is printed in German, is devoted chiefly to the respiratory phenomena which may be noted when the chest is viewed with an unaided but discerning eye. It contains numerous illustrations and case reports but little of strictly neurologic import. While there is unnecessary repetition and prolixity, the style is readable, interesting and conveys the impression throughout that a man who has become charitable through long experience is presenting his observations, which evidently have been made with the care and thoroughness so characteristic of the German internist.
The basis of all science is observation. The increasing elaboration of various technical and laboratory aids in examination of a patient carries with it the certain danger that comes from neglecting the use of the unaided physical senses. Goethe said, "Thinking is more interesting than knowing, but not so interesting as observing."
Weisz would use the term "ectoscopy" to denote the