I AUTHOR INDEX, 205 



Potter. Ou the laws of the expansion of the transparent liquids by- 

 increase of temperature. Phil. Mag. [4] 26 (1863) 347 ; 28 (1864) 271. 



. Examination of the applicability of Mr. Alexander's formula 



for the elastic force of steam to the elastic force of the vapours of the 

 liquids, as found by the experiments of M. Regnault. Phil. Mag. [4] 

 29 (1865) 98. 



Powell (J. Baden). Experiments ou radiant heat from terrestrial 

 scources. Phil. Trans. 115 (1825) 189. 



. Remarks on some of Mr. Ritchie's experiments on radiant 



heat. Annals of Phil. n. s. 12 (1826) 13. Mr. Ritchie's reply, 122. 



Preston (S. Tolver). On the diffusion of matter in relation to the second 

 law of thermodynamics. Nature, 17 (1877-78) 31, 202. Remarks by 

 Clausius, Phil. Mag. [5] 6 (1878) 237 ; Ann. Phys. u. Chem. n. F. 4 

 (1878) 341. Preston agreeing, Phil. Mag. [5] 6 (1878) 400. Aitken, 

 Nature, 17 (1877-78) 260. 



. On some dynamical conditions applicable to Le Sage's 



theory of gravitation. Phil. Mag. [5] 4 (1877) 206, 364. 



. Application of the kinetic theory of gases to gravitation. 



Phil. Mag. [5] 5 (1878) 117, 297. 



. On the possibility of explaining the continuance of life 



in the Universe consistent with the tendency to temperature equi- 

 librium. Nature, 19 (1878-79) 460-62, 555 ; 20 (1879) 6, 28. 



Prevost (P.). Sur deux citations relatives au calorique rayonnant. 

 Ann. chim. et phys. 6 (1817) 412. 



. Deux traites de physique mecanique. Paris. 1818. 



. Extrait d'un memoire sur la constitution mecanique des 



fluides elastiques. Ann. chim. et phys. 38 (1828) 41. 



— . Note relative a quelques experiences ancieunes sur la duree 



du refroidissement d'un corps dans divers gaz. Ann. chim. et phys. 40 

 (1829) 332. 



Priestley (J.). Experiments on the production of air by the freezing 

 of water. Nicholson's Jour. 4 (1800) 193. 



Pringsheim (E.). Ueber das Radiometer. Ann. Phys. u. Chem. n. F, 

 18 (1883) 1-32 ; Phil. Mag. [5] 15 (1883) 101. 



Prony. Note sur un moyen de mesurer I'effet dynamique des machines 

 de rotation. Ann. chim. et phys. 19 (1821) 165, 



