Muscular Activity and thought Processes
Various Psychological Theories Reviewed
Volume 78, Issue 2029supp
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Features
Parenty's Outflow Regulating Devices
Poisoning Tree Scale
An American Aeroplane with Adjustable Wings
Improvements Necessary to Make Flying Safe, Practical and Commercial
A Home made Electric Incubator and Brooder
A Safe, Simple and Efficient Device for the Home Mechanic
Pasteur's Words in Mankind's Struggle
New Experiments of M. Eiffel
Further Light on Aeroplane Problems
The Care of the Wounded
A Vast and Complicated System of Which Little is Heard
Disinfecting the Mouth with Ultra—Violet Rays
Soil Erosion in South Africa
A New Way to make Steel Joints
Some Novel Slow-Speed Motors
A New Power System Utilizing Different Voltages
Approximate Measurement of Textile Fibers
New Experiments with Liquid Air
Manufacturing Conditions in Germany
Design of Floats for Hydro-Aeroplanes—II
Giving the Results of Tank Experiments with Various Models