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Science Notes - December 17, 1904

The Constitution of Portland Cement from a Physico-Chemical Standpoint

By Clifford Richardson

The Manufacture of Carbons in England

By Frank C. Perkins

Simple German Instruments for Testing the Magnetic Properties of Iron

Experimental Electrochemistry

By N. Monroe Hopkins

The N-Rays: Arguments against their Existence

By R. W. Wood

Explanations and Statements concerning N-Rays: A Reply to Prof. Wood

By M. R. Blondlot

North Polar Exploration: Field Work of the Peary Arctic Club, 1898-1902

By R. E. Peary

Excavations at Thermos, Greece

The Paris Correspondent of Scientific American

Current Wheels: Their use in Lifting Water for Irrigation

Construction for a Swift Current in Idaho

Diamond Tools

By G. C. Henning

The Procession of the Suns

By Agnes Clerke

Mystery of the Monolith

Trade Notes and Recipes

Engineering Notes


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