Modern Microscopical Optics
The Limitations of the Microscope
Volume 75, Issue 1941supp
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Features
Scaling Mountain Peaks by Elevator
Aerial Ropeways for the Tourist. By the English Correspondent of the Scientific American
The Literature of Microscopical Optics
Preliminary Report to the Inventors' Guild—II
The Guild's Relation to Patent Practise
Dimensions and Muscular Power of Animals
Methods of Fire Prevention
Excellent Work Done by the British Authorities
Smoke
An Industrial Nuisance
Ocean Temperatures along the West Coast of North America
How to make an Electroscope
A Comparatively Easy Task When You Know the Way
Eyesight and Typography
Absorption of Light in Space
Is there an Absorbing Medium in Interstellar Space
The Morane-Saulnier Monoplane
The Holder of the Height Record-17,880 Feet
A Mechanical Ice Saw
Electricity and Chemical Action
Chemical Action at a Distance