‎SEGUIN (Ainé)‎
‎De l'influence des chemins de fer et de l'art de les tracer et de les construire -- EDITION ORIGINALE -- EXEMPLAIRE BIEN COMPLET DE SES 6 PLANCHES DEPLIANTES ET DE SON TABLEAU DEPLIANT‎

‎P., Carilian-Goeury et Dalmont, 1839, un volume in 8 relié en demi-maroquin marron à coins, couvertures imprimées conservées (reliure postérieure), (quelques traces très pâles de mouillures dans les marges intérieures), (2), 19pp., 501pp., 1 TABLEAU DEPLIANT, 6 PLANCHES DEPLIANTES‎

Reference : 4725

‎---- EDITION ORIGINALE ---- BON EXEMPLAIRE BIEN COMPLET DE SES 6 PLANCHES DEPLIANTES ET DE SON TABLEAU DEPLIANT ---- "AN IMPORTANT WORK IN THE HISTORY OF THE THEORY OF THE CONSERVATION OF ENERGY". (DSB) ---- "M. SEGUIN (1786-1875), a great nephew and leading disciple of Montgolfier organized the company that built France's first modern railroad... In 1839 SEGUIN returned to the problem of heat in his most important publication, De l'influence des chemins de fer, a handbook for the design and construction of railroads. In the chapter on steam locomotive performance, he first rejected the caloric theory because its major premise, the existence of heat as a fluid conserved in all processes, would allow the reuse of heat in an engine and thus would imply perpetual motion. 'It appears more natural to me to suppose that a certain quantity of heat disappears in the very act of the production of force or mechanical power, and conversely ; and that the two phenomena are linked together by conditions that assign to them invariable relationships'. This assumption was the basis for his later claim to priority over Joule and Mayer for the statement of the convertibility and conservation of heat and work". (DSB XII pp. 287/289)**4725/ARM2D‎