Astronomy for 1915
A Review of the More Notable Events, and Work Accomplished
Volume 82, Issue 2128supp
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Features
The Making of a Photographic Objective
Description of a Course in Applied Optics at the Emerson McMillan Observatory, Ohio State University
Swimming-Pool Sanitation
Treatment for Burns
Ancient Volcanoes in South Africa
Army Service Museum
Can Cannon Fire Cause Rain?
Notes on Carburetion
Principles of Operation and Functions of Vaporizing Devices
Melting down Foreign Gold
What Becomes of the River of Coin Flowing From Europe
A Cheap Disinfecting Fluid
Some Curious Electrical Experiments
The Cultivation of Peanuts
A Valuable Crop that Grows in Many Climates
Simple Astronomical Instruments for the Teacher
The Naval Reserve Force
A Portion of a Bill Approved by Congress August 29, 1916
The Food Consumption of Adolescent Boys
Permanence of Writing-Ink
The Evolution of big Guns
From the Cast Iron Smooth Bore to the Modern Breech-Loader
Clock Faces and Hands
Good Lighting
Some of the Fundamental Principles and Modern Practice