SA Supplements Vol 3 Issue 70supp

SA Supplements

Volume 3, Issue 70supp

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Features

Astronomical Notes

Observatory of Vassab College

Determination of Stress-Bowstring Girder

Lieut. George S. Clarke

The Bourdon Pressure Gauge

Combined Engine and Clay Mill

Cement for Wooden Baths

Rack Railway Locomotive

The New Bridge at Pittsburgh

The Ice Boat Whiff

The Edson Recording Steam Gauge

New Holtz Electrical Machine

Elihu Thomson

On Welding

Richard Howson

Pipes for gas and other Purposes

Lubrication

R. H. Thurston

Inventions of the Century

Abstract of a lecture by Prof. Pliny E. CHASE, before the Franklin Institute, March 6, 1877

A New Respirator for Firemen

Plan for Fireproof Flooring

Mordanting Cotton for Aniline Dyes

Iron and Steel

C. W. Siemens

Mine Ventilator

Solid Steel Castings

Size of Hydrogen Atoms

Corn Stover and Hay

Sussex Cattle

Birds in Gardens

Preservation of Fodder

Barnyard Manure

Value of the Dung of a Cow

The Tulip Tree

Wm. Bacon

Horticultural Notes

Manurial Substances

Cotton Seed as Manure

Photo Hints

Photographic Reproduction of Bank Notes

Substitute for Glass in Dry Plates

Weakening Opaque Negatives

E. Riewel

Photography in Lace Factories