Title: Études physiologiques sur les caractères ...
Publisher: Paris, Germer Baillière, 1865
Publication Date: 1865
8vo (214 x 128 mm), pp [iv] 63 , with several white-on-black illustrations in text; a very good copy, bound with two other offprints (see below), in contemporary half cloth and marbled boards.First edition, presentation copy inscribed by Marey to Adolphe d'Eichthal (1805-1895), of Marey's pioneer study of graphic recording of physiological functions. 'Marey applied the technique of graphical recording to the study of the mechanics and hydraulics of the circulatory system, the heartbeat, respiration, and muscle contraction in general. He analyzed the circulatory and muscular systems in terms of the physical variables, elasticity, resistance, and tonicity. With the graphical trace he established the relationship of heart rate and blood pressure, thus supplementing previous studies of the value of blood pressure in a vessel with traces of its waveform .'In this early work Marey sought to apply his methods and results to pathology and to clinical diagnosis. His concern with the greatest possible accuracy in graphical records was matched by his concern for simplifying instruments so that they could be easily used by the clinical diagnostician' (DSB).This work is also of interest for the history of cinematography. It describes Marey's invention of the 'polygraphe' which allowed for the graphic recording of a variety of phenomena. Mannoni regards this as the precursor of Marey's cinematic camera of 1888, and also of the projector. 'L'analogie avec le projecteur peut être évoquée également, puisqu'un polygraphe à projection fonctionne en 1867, à la Sorbonne, pour illustrer les cours de Marey. L'appareil enregistreur trace son graphique en direct sur une plaque de verre enfumée placée au foyer d'une puissante lanterne magique électrique de Jules Duboscq. La projection animée des 200 vibrations par second émise par un diapason, méduse le public de la Sorbonne' (Mannoni, Étienne-Jules Marey: La mémoire de l'oeil, p 44).This work is an offprint from the Journal d'anatomie et de la physiologie (April 1865).Bound with Marey's Essai de théorie physiologique du choléra, Paris 1865 (with a similar presentation inscription), and E. Goze, La médecine militaire en France et en Amérique, Paris 1867.OCLC records only the BN Paris and University of Colorado. Bookseller Inventory # 3223
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