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Heinrich Schliemann

Schliemann

By Irving J. Manatt

An Astronomer's Imaginary Visit to Venus

The Earth as the Morning Star of Mars

Bathypelagic Fishery

Colorado—A Geologist's Notes by the Way

Ozone—Its Commercial Production and Application

By Ernst Fahrig

A Quantitative Reaction for Lignin

By R. Benedikt and M. Bamberger

Rolling Curves

Analysis of Commercial Gelatine Plates

Iron-Aluminum Alloy

Prizes Awarded and Offered at the Academy of Sciences, Paris, on December 29, 1890

Philadelphia a Port of Entry

Electric Motive Power on Elevated Railways

General Design of an Electrical System for the Elevated Roads of Chicago

By William Nelson Smith

The Power of Water, or Hydraulics Simplified

The Flow of Water through Pipes

By G. D. Hiscox

Sutton's System of Telephany

Cure for Baldness

By Edward Blake

Useful Engineering Books

Building Plans and Specifications

Departments

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February 28, 1891

Think Outside the Gift Box