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Stories by Geo. M. Hopkins

Hints on Coloring Lantern Slides

June 2, 1894 — Geo. M. Hopkins

How to Color Lantern Slides

March 11, 1893 — Geo. M. Hopkins

Instrument for Viewing Lantern Slides

January 21, 1893 — Geo. M. Hopkins

Rod and Ring Experiment

December 17, 1892 — Geo. M. Hopkins

A Convenient Camera

July 16, 1892 — Geo. M. Hopkins

Optical Projection of Opaque Objects

March 26, 1892 — Geo. M. Hopkins

An Experiment in Acoustics

March 26, 1892 — Geo. M. Hopkins

The New Book Experimental Science

April 25, 1891 — Geo. M. Hopkins

Experimental Science- April 11, 1891

April 11, 1891 — Geo. M. Hopkins

Experimental Science- April 4, 1891

April 4, 1891 — Geo. M. Hopkins

Optical Projection of Opaque Objects

April 4, 1891 — Geo. M. Hopkins

Experimental Science- March 28, 1891

March 28, 1891 — Geo. M. Hopkins

Experimental Science- March 21, 1891

March 21, 1891 — Geo. M. Hopkins

An Efficient Plating Dynamo

March 14, 1891 — Geo. M. Hopkins

Experimental Science- February 28, 1891

February 28, 1891 — Geo. M. Hopkins

Centrifugal Action of Air

February 21, 1891 — Geo. M. Hopkins

Experimental Science- February 21, 1891

February 21, 1891 — Geo. M. Hopkins

Experimental Science- February 14, 1891

February 14, 1891 — Geo. M. Hopkins

Experimental Science- February 7, 1891

February 7, 1891 — Geo. M. Hopkins

Experimental Science- January 31, 1891

January 31, 1891 — Geo. M. Hopkins

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