262 Scientific Intelligence. 
this should be tried on a small portion in a test tube for greater cer- 
tainty—the urification is finished with peroxyd of manganese, with 
which it is to be agitated and left in contact until the odor of sulphur- 
ous acid is remove 
Redistillation is not required, in fact, is not necessary to the manu- 
facturer, who ig as only to wash well the first product with water and 
aed as abov 
s an lactase of that the author considers the gross ignorance of 
persons pretending to manufacture such articles, he refers to as ers 
examined by him of sp. gr. about 1000, and which see 
the following origin. ‘The maker obtained two fluids fren distillation, 
not knowing that the heavy one was chloroform he threw it away 
put up the lighter, a mixture of pyroxylic spirit, its original is 
the chlorinated oils and a mere trace of chloroform, and labelled it 
pure chlorofo Almost pure from chloroform, Dr. G. well says 
eS It is ree or ts call such conduct the result of gross ere 7 in 
ee such cases a gross ignorance is gross rasc 
cality 
" : 15. On the preparation of Chlorate of TAisk, —Prof. F.C. pap 
in a paper read before the Chemical ane ty of London, describes the 
following process as producing a maximum quantity of chlorate. The 
current of chlorine is passed into a pldbes of 100 fl. grs. containing 
102°33 grs. anhydrous potash—its density 1-1. “358 grs. quick-lime 
es are to be added and the whole slightly heated. The result was 220 
oe grs. of the chlorate beside about 20 ers. i? in the mother — The 
a a precise reaie> | of the liquid is impor Cc. 8. 
ee tic Acid formed from Bimaiae of Ammonia ae M. Des 
ue “> SAIGNES, Tistnptes Rendus, March, 1850.)—Piria has proved that aspar- 
; agine and aspartic acid are the amids of malic, as oxamid and oxamic 
es, ? mentation of asparagine has also been obtained from the fermentation 
. “of the malates in such quantities as to render the malates the best 
: as aa Source. of this hitherto rare acid.t Still all attempts at forming aspara 
ie) aspartic acid from malic acid have failed, as chemists have P 
we *° succeeded in forming malic ether 
te Fo ‘he’ author has however reached the desived end by the dry bi agai 
pin, % tn of bimalate of ammonia. The residue with a heat of a 3705 
ne 
sis a sparingly soluble amorphous reddish mass. Well washed F with hot 
Ld . * * 
iei« water this mass is changed into a very stable acid which howeve is 
, but the salts are identical in form wit 
ne Analysis renders it certain that t 
a ORES RE RRL SE NE Se See ee Se a ae 
__ 
