Chapter IX: PHYSICS.--The Direct Optical Projection of Electro-dynamic

Lines of Force, and other Electro-dynamic Phenomena.--By Prof.
J.W. MOORE--Second portion of this profusely illustrated paper,
giving a great variety of experiments on the phenomena of
loop-shaped conductors.--26 illustrations. 10272

The Mechanics of a Liquid.--An ingenious method of measuring
the volume of fibrous and porous substances without immersion
in any liquid.--1 illustration. 10269