Miscellaneous Intelligence. 301 
absolute temperatures are substituted, becomes 
Tl —T 
. i: oy qi 
which is the formula ascribed by me to Prof. Thompson. 
ot note, however, by the writer of the paper, had I sufficiently 
attended to it, would have informed me that Mr. Rankine was inde- 

in the Lond. and Edin. Phil. Mag. as early as July, 185], in a note to 
his letter to Poggendorff; and had reproduced it in the same journal in 
February and in June, 1853; so that I could hardly be unaware that 
he had independently originated it. 
am happy, in making this correction, to express my admiration of 
the ingenious theory suggested and so ably developed by Mr. Rankine, 
to account for the mechanical phenomena of heat. I regard the coin- 
cidence of the results deduced from premises so different as those em- 
ployed by himself and Prof. Thompson, as one of the most beautiful ex- 
amples of the consistency of truth which the history of science furnishes. 
The cessity of a negative constant, represente by * in enom- 
inator of the formula as given by M ine, for temperatures deter- 
mined by the air thermometer, was pointed out by him alo This 
constant, which becomes zero on supposition of the rigorous conformity 
of elastic fluid, at all temperatures, to “ the gaseous laws,” and which 
tis .St.8., &c. &c. 524 pp. 8vo, 
with 37 plates of fossils. London, 1854. J. Murray.—A work of great 
t 
10. Elementary Chemistry, Theoretical and Practical; by GEorGE 
Fownes, F.R.S., late Professor of Practical Chemistry in University 
Edited with additions by Rosert Bripers, M.D., 
. Coll. of Pharmacy, etc. A new American from 
555 pp. 
11. Manual of Natural History for the use of Travellers, being a 
Description of the Families of the Animal and Vegetable Kingdoms, 
with Remarks on the Practical Study of Geology and Meteorology ; to 
which are appended Directions for collecting and preserving. By Ar- 
