486 Scientific Intelligence. 
1. Molecules are elastic. 2. Molecules possess an open structure. 
3. The ether is a gas whose atoms are so small that their mean 
length of path is greater than any planetary distance. 
motion of these atoms produces the phenomena of gravitation on 
Le Sage’s principle. » 
Various crystalline forms are regarded as due to the yielding 
of the ultimate particles of matter under different conditions of 
stress and strain; and the conception of elastic molecules is con- 
trasted with that of infinitely hard molecules.— Phil. Mag., April, 
1880, p. 267. J.T. 
9. Solubility of Gases in Solids.—Messrs. HANNay and Hogartu 
have experimented upon this subject with the following modifica- 
tions of Andrews’ apparatus: “a T-tube of wrought iron, one- 
half inch iriternal and one inch external diameter, was furnished 
. . 
arsenic in bisulphide of carbon, in 0 
manner. The authors conclude that the critical point of a gas 18 
still further evidence of the continuity of the liquid and gaseous 
80. B pes 
10. Chemical Affinity in terms of Electromotive Force.—Ur. 
Wricut reviews the work of Joule and others upon the Mechant- 
and for the value of the ohm; and states that he is about to com- 
municate results of measurement of the mechanical equivalent of 
heat which are based upon an electrical method.—PAil. May., 
April, 1880, p. 237. 2 
. . fs i - ry) 
discusses the new discovery in magnetism made b r, E. 
It is also shown that the general equations of Kirchhoff, e° 
Helmholtz, Maxwell and Stefan for the motion of electricity. mf 
expresses the bres action discovered by Hall. 
kad. der Wiss. in Wien, Jan. 15, 1880, p. 11. 
