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SA Supplements Vol 23 Issue 578supp

SA Supplements

January 1887

Volume 23, Issue 578supp

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Features

Street Pavements

The French Gunboat Gabriel Charmes

Two Modern Chimneys—A Study of their Design and Construction

C. Powell Karr

The Raffard System of Band Wheels

A New Ice Machine

Improved Rope Machine

Improved Reducing Valve

Oil Mills

The Application of Cellulose to Electric Batteries

Steel—From the Ingot to the Finished Tool

Arthur Y. Jacobs

Electric Bells

Apparatus for Measuring the Intensity of Light in Apartments

Our Building Stone Supply

George P. Merrill

History of the Velocipede

Note on the Origin of Comets

Daniel Kirkwood

Evergreen Shrubs

Arrow Release

Departments

Patents - January 29, 1887