The Rate of Recession of Niagara Falls
Introduction
Volume 63, Issue 1633supp
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Features
The Lentz Reversing Mechanism
How to Construct a Reversing Commutator for an Induction Coil
The Specific Heat of Superheated Steam
Pernicious Effects of Alternating Current of High Voltage
The Chemial Composition of Tool Steel
Molybdenum as a Substitute for Tungsten in Highspeed Tools