Chemistry and Physics. A15 
molecule of quinine is double, and composed of two active molecules, 
one of which deviates strongly to the left, the other feebly to the right. 
ing the bark after it is stripped from the tree in the dark. This would 
very greatly increase the product of quinine.—Comptes Rendus, xxxvil, 
110, July 25th, 1853. 
Transformation of Tartaric acids into Racemic acid.—Pa 
STEUR 
has found that when tartrate of cinchonine is submitted to a gradually 
e origi al Rendus, xxxvii : 
the original paper.— Comptes ers 
Levo-camphoric and De 
wn” 
> 
so 
precisely as much to the left as ordinary camphoric acid turns it to the 
right. ; 
ble each other very strongly in chemical and physical properties. Equal 
