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Annual Report of the Commissioner of Patents

The Pergolese Street Skating Rink, Paris

The Norwegian Skee, or Snow Shoe

Surface Waters

Marine Engine Governors

By J. D. Churchill

The Hudson River Tunnel

Torpedo Boat with Petroleum Fuel

Improved Gas Battery

By Paul Scharf

Protective Rules Relating to Electric Lighting

Electro-Automatic Regulator for Gas

Sibley College Lectures.—1889-90

By the Cornell University Non-Resident Lecturers in Mechanical Engineering

By W. Le Conte Stevens

The Chemistry of Glass

By Gustav Gehring

Improved Hay and Straw Press

Rabies and its Preventive Treatment

By Armand Ruffer

Useful Engineering Books

The Great Nebula in Orion

By William H. Pickering

A Singular Meteorite

Building Plans and Specifications


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