No. 136,

For the Week ending August 10, 1878.

I. ENGINEERING AND MECHANICS.—The Manufacture of Wrought Iron Pipe. Bending the Sheets. Welding the Tube. Manufacture of Gas Pipe. Polishing and Smoothing. 4 figures.

Improved Marine Engine Governor. 1 figure.—Improved Screw Steering Apparatus. 3 figures.—West's Reversing Gear. 1 figure.—Engineering in Peru. The Oroya Railroad over the summit of the Andes. A remarkable engineering feat. The famous Cerro de Pasco Silver Mines. Extensive Coal Fields.

II. TECHNOLOGY.—Coal Ashes as a Civilizer. Grading. Coal Ashes as a Fertilizer.—Utilization of the Waste Waters of Fulling Mills and Woolen Works.—Suggestions in Decorative Art. Marquetry Ornaments from Florence. 3 illustrations.

Useful Recipes. By J. W. Parkinson. Cream cake. Kisses. Apples a la Tongue. Mead. Bread without yeast. Biscuit. Doughnuts. Glaire of Eggs. Crumpets. Ratafia de Framboises. Ratafia de Cerises. To color sugar sand. Raspberry and currant paste. Cheese cake. Cocoanut macaroons. Orange slices. Ice cream. Fruit juices. Lady fingers. White bride cake. Scalloped clams. Iced souffle. Sugar for crystal work. To restore the fragrance of oil of lemon. Family bread.

III. FRENCH INTERNATIONAL EXPOSITION OF 1878.—Tobacco at the Exhibition. Manufacture of snuff. The two processes of fermentation. The grinding. The packing of the snuff. Manufacture of chewing tobacco, etc.

New Cutting Apparatus for Reapers. 1 figure.—The Algerian Court. 1 illustration.—The French Forest Pavilion. 1 illustration.

IV. CHEMISTRY AND METALLURGY.—A Reducing Agent.—Climbing Salts.—Chloride of Lime.—Action of Watery Vapor.—The Active Principles of Ergot.—Cadaveric Alkaloids.

Outlines of Chemistry. By Henry M. McIntire.