Specific heats of steam, that of Hquid water being taken as unity — 

 Real, 0-194 ; apparent, at constant pressure, 0-305. 



The calculations and tables relative to the working of the steam- 

 engine require no correction ; as the discrepancy in question has no 

 effect on the computation of the action of the steam at full pressure, 

 and no effect appreciable in practice on that of its expansive action. 



The following Gentlemen were duly elected Ordinary 

 Fellows : — 



Dr R. D. Thomson, Glasgow. 



Dr Mortimer Glover, Newcastle. 



The following Donations to the Library were announced : — 



Essai de Phytostatique applique k la Chaine du Jura et aux Con- 

 trees Voisines, parM. Thurmann. 2 Tom. 8vo. — Bi/ the Author. 



The American Journal of Science and Arts. Conducted by Pro- 

 fessors Silliman and Dana. "Vol. TX., No. 26. ; Vol. X., 

 Nos. 28 k 29. 8vo.—By the Editors. 



Annals of the Lyceum of Natural History of New York. Vol. V., 

 No. 1 ; Vol. IV., No. 12. 8vo. — By the Lyceum. 



Journal of the Asiatic Society of Bengal. Edited by the Secretaries. 

 Nos. 207 & 212. 8vo, — By the Society. 



Meniorie della R. Academia delle Scienze di Torino. Serie 2'^», 

 Tom. X. 4to. — By the Academy. 



Journal of the Statistical Society of London. Vol. XIII., Part 2. 

 8vo. — By the Society. 



Proceedings of the American Philosophical Society. Vol. V,, No. 

 44. 8vo. — By the Society. 



Proceedings of the Royal Society. 1849. Nos. 73 & 74. 8vo. — 

 By the Society. 



Memoiis of the American Academy of Arts and Sciences. N. S. 

 Vol. IV., Part 1. 4to. — By the Academy. 



Proceedings of the Royal Astronomical Society. Vol. X., No. 7. 

 Bvo. — By the Society. 



Q. Journal of the Chemical Society. No. 10. 8vo. — By the Society. 



