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SA Supplements Vol 30 Issue 780supp

SA Supplements

Volume 30, Issue 780supp

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Features

The River Spans of the Cincinnati and Covington Elevated Railway, Transfer and Bridge Company

William H. Burr

The Five-Masted Ship La France–The Largest Sailing Vessel Afloat

Economical Apparatus

Walter H. Ince

“Compressed Air” Sheep Shearer

The Artificial Light of the Future

E. L. Nichols

An Improved Fuse Cap Fastener

The Electromagnet

Silvanus P. Thompson

Medico-Gymnastics

Jakob Bolin

Dr. Koch on Tuberculosis

A Comfortable Hen House

“Wild Beasts and their Ways.”

Orion

The Manufacture of Hydrogen Dioxide

A. Bourgougnon

A New Cecidomyiid Infesting Box-Elder

C. P. Gillette

New Military Tent

Departments

Patents- December 13, 1890