306 Scientific Intelligence. 
_ papain secondary sas se by the new method.—Liebig’s 
, clxxv, 351, Jan G. F. <7 
"Production of ‘diy! ‘aloohol i in the dry Distillation tad Woo 
are ONHIEM has ee allyl alcohol among the products of 
the dry distillation of w e crude wood s Sa owes 
its penetrating odor es, this substance—after distillation of the 
methyl alcohol, leaves a residue having a density of 76° to 78° 
e low tolling point is due, however, as analysis showed, to the 
presence of a molecule of water, which could not be removed by 
fractional Aeneas When dchyarated by chemical means, the 
oiling point rose to 96-97°, which is that of the pure ally! 
alcohol. The identity of the product was further established by 
direct conversion into bibromhydrin, boiling at 217° and into 
allyl peepee boiling at 101°.—Ber. Berl. Chem. yi vii, ses 
1874, 
Nov. 
5. On the Gases evolved Jrom Apples.—BxEnvER has es an 
examination of the gases evolved from ripe apples The fruit cut 
in pieces was placed i in water free from air contained in a flask fur- 
nished with a delivery tube. On raising the temperature to 60°, 
the gas began to come off, and at 100°, the evolution was rapid. 
Four moderately sized apples afforded about 100 c.c. of gas. 
cent eing oxygen. Ina basen experiment, ‘31 ‘07 per cent 
of the gas was carbonic acid and 68°93 per cent of nitrogen. e 
a believes that the carbonic acid comes from a fermentation 
within the fruit, oa pg being produced at the time of ripen- 
ing.— Ber. r, Berl. C % Ges., viii, 112, Feb., 1875. G. F. B. 
6. On the pasa of Light’ upon je Sugar. —KREUSLER 
has made a series of experiments to test the assertion of Raoult 
he influence of | hile Raoult used only a solution con- 
taining 10 grams of white sugar to 50 grams of water, Kreusler 
sort. B 
Fauid exposed to the light nor that pears) in darkness gave the 
in 
seali 
duced s trong] e copper test; that exposed to light being the 
more active. author believes therefore that an n imperfect ex- 
nie aig in Raoult’s tubes was the cause of the results he describes. 
erl. Chem. Ges., viii, 93, Feb., 1875. G. F. B. 
