112 _ Scientific Intelligence. 
is results on specific heat :— 
% 3 Temperatures between ich 
_ Substances, the specific heat was ob- | Specific heat. — 
qo aaa 
2 a) aaa . . 4 340° and 240° Cent. | OO61 © 
eee Te 88 035 
a . . . . 
D’Arcet’s alloy, PbSn,B,,| 300 “ 136 « 
Gy. cries 2 ‘ ‘ 
jap, (> 10.38 
ee ‘ . Sie seae. 
do. | SA aes Ee 
Fusible alloy, Pb Si, Bis wou. 6 
Phosphoru no oe 
Sulphur, ‘ : 
Nitrate of soda, : ; 430 Se = Sa0 
Nitrate of potash, > Boe eo aoe 
sare, of soda, ; rt eee © 
oo i a ee 
Chlorid of calcium, : 127 « 100 ae 
A i : 60 “= 9188 
Ooi. ‘ , .. 4° eat 
Gia. ; . 2 ¢ 2 
Yellow bees’ wax, 6. 102... 6G es 
als do. . . . : 
the formula in its physica sense, and not as an empirical one 
2. Note on the means of testing the comparative value of avian 
Substances for the purpose af, Tanning ; by Rosext Warineton, Esq» 
Cat Mag., xxxi, 150, from the Proceedings of the Chemical Society-)— 
aving been fr equenily valled upon to examine the value of astringent 
sa bitnnes imported into this country for the purposes of tanning, such 
as valonia, divi-divi, sumac, cutch, &c., 1 am induced to bali 
such as varieties of ‘auslioe s glue, patent gelatin, go he finest long 
idlole isinglass was found to be the most constant in’ its ee 
least liable to aie change. 
