Chemistry and Physics. 413 
9. On the Coloring matter of the ( 
STER has examined the Chinese ye ello: ow Sentkes used in ifr enee (the 
buds of Sophora japonica). The glucoside obtained when treated 
with sulphuric acid yielded 46°84 per cent of a yellow substance 
and 57°56 per cent of isodulcite. This low ee was not 
quercetin however; and so the me is not quercet The 
author proposes for it the name  sophor The a liboesee of the 
caper ( Capparis spinosa) and of the panto rue (Ruta yn graveolens) 
are apparently identical with quercetrin, yielding quercetin and 
isodulcite when oe osed by means of dilute Siictasestind Berd. 
Ber. Berl. aun Ges., xv, 214, , 1882. 
10. Maximum of magnetizatio n ” of te gnetic and ane 
pibiagade bodies.—The researches Jankel, Rowland and 
t ne i 
Ww 
point of magnetization. Silow has also aeeeea that a solution 
of chloride of iron possesses a maximum point. H. W. Eaton, in 
is paper discusses the various results of Giderent observers : 
s tha 
oO igtl 1 
Bunsen cells), and doubts whether the use of 30 Bunsen cells 
would show a maximum. Shumeister reeanee the maximw 
conditions of water, alcohol, sulphide of carbon, ether, oxygen 
anc ee and discovered apparently a maximum. Eaton 
re humeister’s observations and maintains that this maxi- 
mum pele: ne does not exist in ordinary magnetic fields. Then 
x 
constant of bismuth. The following table of the results of 
various observers is given: 
10° k. 
1é Weber (through pean ors a eB iw Oa ORES —2°304 
2. a ough electrical influence),........:..._--_-- —2°122 
3. Chris Bs ee —1-485 
4, take ‘and Mtingenansen, = ots —1'492 
ARREST EI Ts Wo UEP Nirae =o Mn —0°012554 
5. Rowland and Jacques (in C. G. 8. units), is LES Sed aE —0°14324 
K’ principal axis of crystal Mesias 
Gag te ee “ hori iZO) tal. 
—Ann. der Physik und Sheds No. 2, 1882, pp. wfc 
ll. Reflection of electrical rays.—W. Hittorf has maintained 
m te) 
age condition can serve as a reflector—it matters not whether it 
a phosphorescence exciter, on insulator, or a conductor. Th 
