Volume 108, Issue 4
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Features
Micro-motion Study
A New Development in Efficiency Engineering
Morning and Evening Stars for 1913
Graphic Representation of the Planets and their Movements During the Year
An Egyptian Solar Power Plant
Putting the Sun to Work
"The Whip" and its Mechanism
A Ponderous Melodrama with Dogs, Horses, Automobiles and Trains that Move and are Wrecked
Climbing a Magnetically Supported Chain, His Mattress a Life Raft and more
By Our Berlin Correspondent