206 ABSTRACTS OF PAPERS FROM OTHER JOURNALS. 
insoluble in ether and chloroform. It does not give precipitates 
with tannic acid, potassio-iodide of mercury, or potassio-sulpho- 
cyanide of zinc, and does not contain nitrogen. The substance is 
not an alkaloid, and as it reduces copper in presence of potash the 
author is of opinion it is a glucoside, and proposes for it the name 
ine. Its composition is not given. 
PETALOSTIGMA QUADRILOCULARE. Falco. (Chem. Centi, 1867, 
p. 142. Watt’s Dict. Sup. J, 904.) 
The stem bark of this euphorbiaceous plant contains besides the 
ordinary plant constituents a camphoroidal essential oil, and an 
indifferent bitter principle belonging to the glucosides. The bark 
contains 83 per cent. of ash, which contains— 
NaCl K,0 NazO CaO MgO Al.O, Fe.0; Mn;0, SO; P20; SiOz CO2 
2°94 2°75 0°94 46:23 143 0:05 0-18 0-46 1:32 056 2-21 4033 
Sycoretiy. Warren de la Rue and Hugo Miiller. (Chem. 
V, 62 
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ened with water. n heating it smells like wax, although 
inodorous in its natural state. It is insoluble in water, but gives 
- consisting of caoutchoue and impurities, 
precipitate is obtained, containing 74°65 per cent. C., and 1011 
per cent. H., whilst the second half contains 77:89 per cent. C., 
and 9-94 per cent. H. 
neutral to test-papers ; it is brittle and highly electric. It melts 
below 100°, and, when heated with water to the boiling point 1 
floats on the surface as a thick liquid. It dissolves easily 12 
alcohol, ether, chloroform, and turpentine, and is not precipitated 
its alcoholic solution by neutral lead acetate, nor by a 
# fine green colour, without forming sugar, and on dilution with 
water a less soluble substance aioe eae 5 A few degrees 
