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The Work of Improving the Danube

Artesian Wells as a Source of Water Supply

By Erastus G. Smith

The Manufacture of Cider by Diffusion

Oil Mills of the Bombay, Baroda, and Central India Railway Company

Double Level with Needles

Studies of the Phenomena of Simultaneous Contrast Color: And on a Photometer for Measuring the Intensities of Lights of Different Colors

By Alfred M. Mayer

A Photo-Telegraph

By H. C. Johnson

Laussedat's Hemiperiscopic Camera Lucida

Megatherium Cuvieri

Earthquake at Kushan, in Persia

The Japanese Earthquake of 1891

By Ralph S. Tarr

Single Chrysanthemums

MSS. of the New Testament

The History of Footgear

Vedalia Cardinalis—A Triumph of Scientific Method

The Breeds of Fowls

Antarctic Seals

By William S. Bruce

The Pecten or Scallop

By Nicolas Pike


By W. Chandler Roberts-Austen

The Purification of Water by Precipitation and Sedimentation

By Percy Frankland

Plant Chemistry and Bacteriology

By Henry Wurtz

Artificial Indigo



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    January 27, 1894

    20% Sitewide for President's Day