MICHAELIS, Capt. O. E.—The Le Boulenge Chronograph.

With three lithographed folding plates of illustrations. 4to, illustrated, cloth 3 00

MICHIE, Prof. P. S.—Elements of Wave Motion relating to Sound and Light.

Text-Book for the U. S. Military Academy. 8vo, cloth, illustrated 5 00

MINIFIE, WM—Mechanical Drawing.

A Text-Book of Geometrical Drawing for the use of Mechanics and Schools, in which the Definitions and Rules of Geometry are familiarly explained; the Practical Problems are arranged, from the most simple to the more complex, and in their description technicalities are avoided as much as possible. With illustrations for Drawing Plans, Sections, and Elevations of Railways and Machinery; an Introduction to Isometrical Drawing, and an Essay on Linear Perspective and Shadows. Illustrated with over 200 diagrams engraved on steel. Ninth edition. With an Appendix on the Theory and Application of Colors. 8vo, cloth 4 00

"It is the best work on drawing that we have ever seen, and is especially a text-book of Geometrical Drawing for the use of Mechanics and Schools. No young Mechanic, such as a Machinist, Engineer, Cabinet-maker, Millwright, or Carpenter, should be without it."—Scientific American.

—— Geometrical Drawing.

Abridged from the octavo edition, for the use of schools. Illustrated with 48 steel plates. Fifth edition. 12mo, cloth 2 00

MODERN METEOROLOGY.