Chemistry and Physics. 149 
Pettersson and Humpidge, the pyramid $P. The authors think 
the analogy close between beryllium and zine, the latter being in 
all loaves holohedral.— Ber, Berl, Chem. Ges., xvii, 849, 
<i fe G. F. B 
On ‘ie Vapor-density of Beryllium Chloride.— The im- 
ti of the atomic weight of beryllium in connection with 
operation had to be conducted in a narrow tube of platinum. 
The chloride is an easily fusible and volatile snow-white mass, 
made up of minute crystals sometimes transparent. To deter- 
in presence of air, the tube and manometer were fille care- 
fully dried carbon dioxide before it was introduced. The vapor 
2°770; and for Be’ and BeCl, 1:385. Hence in the state of a 
perfect gas, from 686° to 800°, the molecule of beryllium chloride 
18 represented by the formula BeCl, and the ae ee of 
i 
eg eS ee eg rN Sy ee Fr 
i beryllium must ae considered as 9°10.—Ber. Ber m Pix 
Xvil, 987, Ma G. F. 
6. On PA ios ne, a hydrocarbon from Chamomile.—In exam- 
ining the residue from the evaporation of the solvents used in the 
extraction of the flowers of chamomile (Anthemis nobilis), N auDIN 
discovered two white crystalline selina ig from each other 
by treatment. with cold absolute alco The one least soluble 
— at 63°-64°; the other at 188° seo From a kilogram of 
e flowers, 1°5 grams of the former and 4°5 grams of the latter 
iors obtained. ‘The former body only has been examined. It 
crystallizes in fine microscopic needles without odor or taste, 
boils at 440° and has a specific gravity of 0°942. It is insoluble 
in water but soluble in ether, ligroin, carbon disulphide, chloro- 
form, ete. On elementary ia it afforded, as a mean of man 
accordant analyses, carbon 83°80, hydrogen 14°40=98°20; a loss 
of 1°80 per cent. Repeated by Schiitzenberger, the analyses still 
showed a loss of 1:53 per cent. The formula C,,H,, requires 
_ 85°82 carbon and 14:18 hydrogen.» Its vapor density was hess 
_ tobe 127. The author is inclined to consider = as an octodecene 
with a closed mere ; and proposes to~call i t froctoecene ~ 
anthemene.— Bull. Soc. Ch., I, xli, 483, May, 18 
actosin, a new Carbo ohydrate 7 pe sas described 
a new carbohydrate closely resembling dextrin and which seems 
pt TH Sines, Hal eh 
VE > eS eee eS ae pret ee 
