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Stories by M. Hopkins

Equatorial Stand for Small Telescopes

December 29, 1894 — M. Hopkins

Lantern Slide Illustrating Sound Waves

June 23, 1894 — M. Hopkins

Hints on Coloring Lantern Slides

March 24, 1894 — M. Hopkins

Experiment Showing Magnetic Lag

August 26, 1893 — M. Hopkins

Focusing Device for Telescopes

June 3, 1893 — M. Hopkins

Simple Hygroscope

May 20, 1893 — M. Hopkins

Unscientific and Scientific Divining Rods

August 20, 1892 — M. Hopkins

Some Suggestions in Photography

November 21, 1891 — M. Hopkins

Some Suggestions in Microscopy

July 4, 1891 — M. Hopkins

Simple Apparatus for Gathering and Examining Microscopic Objects

June 20, 1891 — M. Hopkins

Iridescent Glass

May 23, 1891 — M. Hopkins

Beautiful Example of Diffraction

May 2, 1891 — M. Hopkins

Electrical Laboratory for Beginners

March 21, 1891 — M. Hopkins

Making Carbon Rods and Plates

May 18, 1889 — M. Hopkins

A Magnet for Experimentation

May 11, 1889 — M. Hopkins

Apparatus for Soldering and Melting

May 4, 1889 — M. Hopkins

Sensitive Flames

March 23, 1889 — M. Hopkins

Vibrations of Diaphragms

March 16, 1889 — M. Hopkins

Lantern Pantographs

March 9, 1889 — M. Hopkins

Simple Experiments in Physics

January 26, 1889 — M. Hopkins

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