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The Nature of Viscosity, How ItHas Been Estimated and Measured, Its Value II Every-Day Life

By Nicolas Flamel

River Bends and Meanders

Mechanical Analysis of the Forces atWork Suggests That Meanders Result from “Buckling”

By Colonel Hoc

Yttrium Mixed Metal

A Preliminary Study in the Production and the Properties of the Rare Earth Mixed Metals

By J. F. G. Hicks

The Semi-Diesel Engine

The Structural and Operating C haracteristics of the Hot-Bulb Engine and Its Economic Position

By H. F. Shepherd


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    August 30, 1919