| TABLE OF CONTENTS. |
|---|
| | PAGE |
| I. | CIVIL ENGINEERING.—The GirardHydraulic Railway.—One ofthe great curiosities of the Paris exposition, the almost frictionlessrailway, with sectional illustrations of its structure.—8illustrations. | 11451 |
| II. | ELECTRICITY.—Early ElectricLighting.—Electric lighting inSalem in 1859, a very curious piece of early history. | 11458 |
| Electric Motor for AlternatingCurrents.—A motor on an entirelynew principle for the application of the alternating currentwith results obtained, and the economic outlook of the invention. | 11458 |
| Portable ElectricLight.—A lamp for military and other use, inwhich the prime motor, including the boiler and the lamp itself,are carried on one carriage.—1 illustration. | 11458 |
| The ElectricAge.—By Charles Carleton Coffin.—A shortresume of the initial achievements of modern electricity. | 11458 |
| III. | GEOLOGY.—TheFuels of the Future.—A prognosis of the futureprospect of the world as regards a fuel supply, with a specialreference to the use of natural gas. | 11457 |
| IV. | MISCELLANEOUS.—Preservationof Spiders for the Cabinet.—Amethod of setting up spiders for preservation in the cabinet,with formulæ of solutions used and full details of the manipulation.—1illustration. | 11461 |
| The Ship inthe New French Ballet of the "Tempest."—A curiousexample of modern scenic perfection, giving the constructionand use of an appliance of the modern ballet.—5 illustrations. | 11450 |
| V. | NAVALENGINEERING.—Crank and Screw Shafts of the MercantileMarine.—By G. W. Manuel.—This all-important subjectof modern naval engineering treated in detail, illustrating the progressof the present day, the superiority of material and methodof using it, with interesting practical examples.—1 illustration. | 11448 |
| Experimental Aidin the Design of High Speed Steamships.—ByD. P.—A plea for the experimental determination of the probablespeed of ships, with examples of its application in practice. | ...
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