246 Scientific Intelligence. 
SCIENTIFIC INTELLIGENCE. 
I. CHEMISTRY AND PHYSICS. 
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and pretty hard. Four decigrams of t 
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gives a brilliant sand; but heated with care, the temperature rising 
very gradually, up to full ignition, it retains its form and glassy 
transparent masses are obtained. T i 
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Yr. P 
tration took place through these membranes, but that they allowed 
re) 
passed out into the water 14 per cent of the sugar in the former 
case and 49°5 per cent in the latter. A membrane made In 4 fun- 
nel tube, and this filled with copper sulphate solution and placed 
in water, showed after twenty-four hours a difference of level of 
13 cm. and the water without was distinctly blue.—Ber. Berl. 
Chem. Ges., xi, 2124, Dec. 1878. ae 
2. On the Action of Hypo-chlorous oxide on Ethylene.—Mv 
pER and Bremer have studied the action of hypochlorous oxide 
