Chemistry and Physics. 315 
change in the magnitude of the angle of contact, would like- 
wise produce similar results. It is, @ prior, by no means im- 
probable that, at the same temperature, there may be some 
change in this angle with a change in the radius of curvature 
of the meniscus; but inasmuch as such alterations in this angle 
could hardly have escaped observation, it seems more probable 
that the phenomena are due to the changes of surface-tension 
In portions of the film investing the floating masses. 
tis highly desirable that similar comparisons of the results 
of theory and experiment should be extended to other liquids 
than water; in other words, Simon’s experiments should be 
repeated with other liquids. 
tis not my purpose to supplement my previous article by 
any further discussion of the difficulties and inconsistencies of 
the hydrostatic explanation of this class of phenomena :—like 
Prof. J. D. Everett, I find it difficult to “conceive of negative 
Berkeley, California, January 15, 1884. 
——.. 
SCIENTIFIC INTELLIGENCE. 
I. CHEMISTRY AND PHysIcs. 
di 1. On the reduction of Gases to Normal Volume.—In the or- 
ary methods of measuring gases, long and tedious calculations 
re required to reduce the results to normal volume. EUSLER 
4 
jacilitated, It consists of a U-tube, one of whose legs terminates 
na funnel and the other in a pipette-like enlargeme 
ending above in a capillary tube. The gas-vessel thus f 
-Tesponding to this capacity. A graduation 
aes rs ee 
_ 'S continued downward as far as is necessary; to 120 in the author’s 
