I.

MATERIALS USED IN ENGINEERING.--Classification, Origin, and Preparation

(where not given in course of Technical Chemistry), Uses, Cost.

_Strength and Elasticity_.--Theory (with experimental illustrations),

reviewed, and tensile, transverse and torsional resistance determined.

_Forms_ of greatest strength determined. _Testing_ materials.

_Applications_.--Foundations, Framing in wood and metal.

FRICTION.--Discussion from Rational Mechanics, reviewed and extended.

_Lubricants_ treated with materials above.

Scientific American Supplement, No. 433, April 19, 1884 · 第 14 / 69 题