Scientific American Magazine Vol 53 Issue 21

Scientific American Magazine

Volume 53, Issue 21

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Features

Electric Motor on the New York Elevated Railroad

The National Academy of Sciences

Photographic Notes - November 21, 1885

Revolving Cultivator

Improved Trunk

Cutting Nippers

Cotton Chopper Attachment for Cultivators

Purifying and Separating Middlings

The "Monarch" Churn

Dumping Car

Improved Car Coupler

Railroad Rail Joint

Microscopic Examination of Ciliated Organisms by Intermittent Light

George M. Hopkins

A New Apparatus for Measuring Electric Currents

F. De Lalande

Opening of a Telpher Line

Hub-Boxing Gauge

Buttonhole Cutter

Hair Cutting Machine

Improved Split Link

Captive Balloons for Army Use

Miscellaneous Inventions - November 21, 1885

Agricultural Inventions - November 21, 1885

Engineering Inventions - November 21, 1885

Departments

Correspondence - November 21, 1885

Business and Personal - November 21, 1885

New Books and Publications - November 21, 1885

Index of Inventions - November 21, 1885

Notes and Queries - November 21, 1885