396 Scientific Intelligence. 
than in any other. Edison has made a wonderful exhibition of his 
called motograph principle, together with the applications of it 
ray’s harmonic 
ell’s original 
Weber, th 
thermic and electro-motor apparatus of Becquerel, the electro- 
capillary apparatus of Lippmann; all these and many more are 
here collected. And as for are lights, the Exhibition at night 1s 
. Elasticity and Motion—Sir W. Tuomson is led from the 
consideration of various experiments with fluids and solids and 
ical affinity — electricity, magnetism, gravitation and inertia. 
The writer looks forward to a greater generalization which shall 
include elasticity as a form of motion.—Roy. Inst. of Great Brit- 
ain, March, 1881. i. 
