Scientific American Magazine Vol 102 Issue 10

Scientific American Magazine

Volume 102, Issue 10

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Features

A Tribute to American Shipbuilding, Could the Earth Collide with a Comet?, Patent Complexities in Great Britain

Engineering, Electricity, Science

Two Remarkable Shows

Novelties in Motor Boats and Aeroplanes

Rapid Progress of the New York State Barge Canal

A Record of Recent Achievement

The Anthracite Coal Beds of Alaska

Day Allen Willey

Ostrich Farming as an Industry

Newton Forest

The Bullet's Flight*

The Bullet's Flight from Powder to Target. The internal and external ballistics of small arms. A study of rifleshooting with the personal element excluded, disclosing the cause of the error at the target.lliustrated with188 plates. showing the results of over 300 rifle experiments performed and chronologically arranged. By F. W. Mann, B.S., M.D. Size 7 1/2 inches. 384 pages. Price $4 postpaid. New York, 1909. Munn & Co. Some Newly Discovered Errors in Target Shooting*

Tool-Holding Device for Wood Turning

Chauncey W. Nieman

Electric Incubators and Brooders

Frederick E. Ward

Boring Holes in Glass

George J. Murdock

Convenient Door Holder

D. Pennington

A Wagon Jack

I. G. Bayley

Departments

The Heavens in March

Recently Patented Inventions

Index of Inventions

New Books, Etc.

Notes and Queries