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Scientific American Magazine Vol 56 Issue 9

Scientific American Magazine

Volume 56, Issue 9

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Features

Improved Caloric Engine

Are Steel Guns Really Superior?

New Amendment of the Design Patent Law

The Cocaine Habit

Emery Wheels for Gumming Saws

The Frilled Shark--The Oldest Living Type of Vertebrates

Improved Blind Stop

Plasterer's Hawk

A Simple Device for Crimping Boots or Shoes

Combined Bench and Ironing Board

Adjustable Wood Measuring Rack

Improved Stump Puller

Combined Brush and Comb Cleaner

Penberthy Injector

Protector for Ladies' Hats

Our Winter Birds

E. M. Hasbrouck

Thermoscopic Balance

Geo. M. Hopkins

Improved Marine Dredger

The Northern Lights

Effect of a Torpedo on an Ironclad

Chevreul's Black

T. O'conor Sloane

Torpedo Boat Armed with Pneumatic Dynamite Guns

Agricultural Inventions - February 26, 1887

Miscellaneous Inventions - February 26, 1887

Engineering Inventions - February 26, 1887

To Inventors - February 26, 1887

Departments

Correspondence - February 26, 1887

Business and Personal - February 26, 1887

Notes and Queries - February 26, 1887

New Books and Publications - February 26, 1887

Index of Inventions - February 26, 1887