Scientific Intelligence. lil 
Operating on half a grain of diamond, we have in a first pro- 
cess obtained half a grain of carbonate of lime, and using the 
residuary matter have continued the oxydation, until at length 
the amount of carbonic acid evolved approached nearly to that 
due to the entire weight of the diamond. In ‘these experiments, 
the carbonic acid evolved by the bichromate and sulphuric acid 
is first expelled from the apparatus, by a particular mode of con- 
ducting the operation. 
SCIENTIFIC INTELLIGENCE. 
___L Cuemisrry anp Paysics. 
iy the Latent ‘ge Specific Heat of Bodies; by C. C. 
ERSON, (Comp i, p- 162; Pogg. Annalen, a p- 300.) 
—Person gives the allowing a as his results on latent heat : 
Melting point. Fee 
Tin, i's 235° Cent. M3 = ? 
Bismuth, in At 12-4 
= ; eS 515 
Zin 8 6 * 27-46 
D’Arcet’s alloy», Pb Sm $ Bigs a aad 5 
Fusible mos Pb Sn, Bi, 145... -* 7-63 
Phosphor 442 « 4-71 
ulphur . ‘ > a) ieee 9°175 
Nitrate of en . , ‘ ' 3105 * 62:98 ‘ 
Nitrate of potash, 339 “* 46°18 
Phosphate of a PO, 2Na 024HO, 364“ 54°65 
Chlorid of calcium, Cl Cao-+6Ho, : ao. 45°79 
| Yellow bees’ wax, 62-0 “ 43°51 
we examine this and the following table, we see that the latent 
heats do not follow the order of the temperature, and that they are not, 
also, inversely as the atomic weights, as oe a But they are 
rela oe ae? fig poi nts and specific hea 
a t)d—I, 
rn ee 4 ides &. ey vee 
