112 Scientific Inielligence. 
may. be: ‘regarded as NH, in which the same substitution has occurred. 
isamerism of the two acids may be due to the existence of two 
isomeric sg 
1 itro- hippuric acid. —Benracnint has found that nitro-ben 
oh 
n 
fe) 
a 
2 
. 
a 
Pe aap 
° 
“ 
CO = 
oot 
Ss a 
@ 
a 2 
- 
ag 
oO 
2,8 
2 
3 
_ Oo 
2) 
aed 
= 
D 
5 
oO 
a 
° 
oO 
< 
= 
om 
we 
[=] 
and found that when heated with ri acid it was resolve 
into eiyoonol and nitro-benzoic acids.—Comptes Rendus, xxxi, 470, 
Sept 
ss - ion of cyanhydric acid upon aldehyde ammonia.—STRECKEB 
. 
a 
ro 
< 
poe) 
= 
} 
Pa 
cd 
o 
o. 
< 
BS 
} 
eS 
of 
= 
Q 
2 
& 
= 
o 
ae 
oa 
= 
p fae 
: ous 
o 
5 
3 
= 
> 
mM 
a 
° 
oC. 
rs) 
3 
o 
a. 
S 
5 
= 
mM 
ta 
“— 
S 
= 
— 
3 
. 
studied. When two > paris b pak of aldehyde ammonia and one 
evaporation and crystallization, sal-ammoniac and a mother-liquor con- 
ining a new substance, alanin. Alanin crystallizes from a warm so- 
ution on cooling in ieee usually acicular, prisms, often of con- 
siderable Size ; ‘the crystals are hard and crack between the teeth; 
they are soluble in water, lighily soluble in alcohol, insoluble in ether ; 
the aqueous solution has a sweet taste, does not change vegetable col- 
ors, and gives no eae ees the ordinary reagents. . e 200° 
alanin sublimes and condenses in fine Oe crystals ; oh poration 
is represented by the for tile C,H, and it is consequently 
homologue of glycocoll; the following equation kbbabie its formation 
C,H,0,+C,NH+2HO=C,H_NO,. 
mie recker observes that ie has the same formula as urthethan, lac- 
mid and sarkosin, from which however its chemical and physica 
eae sufficiently distinguish it; it combines with acids to form 
crystalline compounds, as well as with the oxyds of ebb co al lead, 
and barium; in these respects therefore it resembles glyc Heated 
aiedlled with sulphuric acid gives acetic acid. With peroxyd of lead 
nin gives carbonic acid, aldehyde, and ammonia ; when a current of 
anesen acid a): is passed into an aqueous solution of alanin, nitro- 
_ that which is obtained from sugar. The following equation, 
C,H,NO,-+-N 0,=C,H,0O,+2N-+-HO, 
