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The Savoyarde—The Bell of the Church of the Sacred Heart, Paris

Portland Cement

By Spencer B. Newberry

The Commercial Manufacture of Liquid Air and Oxygen

Manufacture of Photographic Plates

Railway Signaling

By W. McC. Grafton

Brighton and Rottingdean Tramway

The Making of a Tunnel—The Waterloo and City Railway

A Novel Brick Chimney

By D.J. Curtis

Electric Registering Water Level Indicator

Notes on Gold Milling in California

Mill Details.

By Ed. B. Preston

Collisions between Steamers and Whales

Commercial Fibers

By D. Morris

Lecture on Potatoes

Species and Varieties

Investigation of Bovine Tuberculosis, with Special Reference to its Existence in Iowa



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