Chemistry and Physics. 145 
nearly the same fusing point were united and recrystallized till 
this point was constant; eighty fractions being in this way con- 
i ee. The first ( in dark red i 
fusing at 220°; the second (D) was in large bright red_ brittle 
needles, fusing at 185°; the third AE) was in oot: yellow fine deli- 
cate needles, which fused at 144°. On examin ing the fractions 
obtained A yielded a small care of a body insoluble in ben- 
fraction D a new hydrocarbon having the formula C a whisk 
though not Gas al with Bédecker’s substance—this being pro 
ably a mixture of pyrene and phenanthrene—the author proposes 
to call idryl. Further researches lagp 8 its constitution are in 
progress.— Ber. Berl. Chem. Ges., x, 2022, Dec 
1. Onthe Determination of Nitrogen in Ni troglycerin. —LAUER 
and Apor have made a series of experiments to ascertain the best 
method of determining nitrogen | in be POLL eh Solution of the 
of the nitrogen by Reichhardt’s method, gave too low results. The 
dynamite was then shaken with water, the deposited nitroglycerin 
dissolved in alcohol, the alcoholic solution treated with potash and 
on ssiwnesly and yielded she, theoretical ‘quantity, 18°5 ap: ia — 
rl. Chem. Ges., x, 1982, Dec 
8. On Anis Hydantoins. gtr we direct union of pono 
acid and glycocoll, hydantoic acid is produced : door *4+CONH 
=Cco<NH By loss of water, hydantoin is formed 
NH.CH ,COOH. 
ee 
CONV H CH,” Hydantoin and its homologues methyl-hydan- 
toin, may also be formed by fusing nectar g Heo H. or the corre 
sponding homologues of it with urea: d 5% OH “CONT 
=€o< ieee me at *+H.O+NH,. Scuweser has succeeded 
in forming a Ladi a en by fusing together phenyl-glycocoll 
NH 
with | Phenvl-hydantoic acid was not 
urea: CO omy yl-hy aa 
obtained. When how ever, ™” acani dea e ata 
and Phenyl-elyoocall in aqueous . solution are allowed to stand for 
some days at 40° the filtrate after separation of the a m 
ce esl “ie alcohol, on abundance of phenyl-by — 
Ber. Berl, Chem. 2045, Dec. 1877. F. B. 
‘hai. ri Scr.—Tutrp eal: Vou. XV, No. 86.—Fes., 1878. 
10 
