. The London, Edinburgh and Dublin philosophical magazine and journal of science. bic (Oblique) System 461 Mr. C. W. Merrifield on the Law of the Resistance of the Air to Rifled Projectiles 463 Dr. A. Dupre* and Mr. F. J. M. Page on the Specific Heat of Mixtures of Alcohol and Water 464 On the Relation which exists between the Cohesion of a Com-pound Body and the Cohesions of its Elements, by M. J. Moutier 466 On Solar Radiation, by M. Soret 469 On the Internal Work of Gases, by M. A. Cazin 470 Index 473 PLATES. I. II. III. IV. Illustrative of Mr. J. J. Waterstons Paper on certainThermomolecul


. The London, Edinburgh and Dublin philosophical magazine and journal of science. bic (Oblique) System 461 Mr. C. W. Merrifield on the Law of the Resistance of the Air to Rifled Projectiles 463 Dr. A. Dupre* and Mr. F. J. M. Page on the Specific Heat of Mixtures of Alcohol and Water 464 On the Relation which exists between the Cohesion of a Com-pound Body and the Cohesions of its Elements, by M. J. Moutier 466 On Solar Radiation, by M. Soret 469 On the Internal Work of Gases, by M. A. Cazin 470 Index 473 PLATES. I. II. III. IV. Illustrative of Mr. J. J. Waterstons Paper on certainThermomolecular Relations of Liquids and their SaturatedVapours. V. Illustrative of M. R. Ruhlmanns Paper on the Alteration producedby Heat in the Velocity of Propagation of Light in Water. VI. Illustrative of M. Berthelots Paper on a New Thermometer for mea-suring Temperatures above the Boiling-point of Mercury, and Gills on the Dynamical Theory of Heat. BvuLMtg. Vol. Berthelots New Themjomoiwfor mzasccrxng temperatures aJjovey tiu^ BuffingPotrvb of Mercury: (WaJxrJ. (Mercury) (SvJbphxr) , luJu _ THELONDON, EDINBURGH, and DUBLIN PHILOSOPHICAL MAGAZINE AND JOURNAL OF SCIENCE. [FOURTH SERIES.] JANUARY 1868. I. On the Theory of George Farrer Rod well, * I. Of the subtilis ignis of the Ancients.—II. Of old chemical literature,and of the significance of the terms Sal, Sulphur, Mercurius, as em-ployed by mediaeval Chemists.—III. Of the supposed nature of fire priorto the rise of the theory of Phlogiston ; specially of Descartess materiacalestis, and of Hookes theory of combustion.—IV. Of the ideas re-garding the calcination of metals which prevailed prior to the rise of thetheory of Phlogiston.—V. Of Becher and Stahl, and of the rise anddevelopment of the theory of Phlogiston.—VI. Of the syncretistic natureof the theory of Phlogiston. THE theory which proposed to trace the cause of variousphenomena of chemical change to the absorption


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Keywords: ., bookcentury1800, bookdecade1840, booksubjectscience, bookyear1840