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Improved Quadruple Expansion Engines

Blake New High Duty Pumping Engine

The Collapse of Fountain Linings

By Thomas Warwick

The Painting of Wood and Iron Structures

By Edward H. Brown

Bridge over the Mississippi at Memphis, Tennessee

The Bigraph

Drainage of the Valley of Mexico

Reynolds' Instructions for Erecting and Testing Lightning Conductors

Photographing Interiors

By Ellerslie Wallace

A Photographer's Electric Pencil

Wall Papers

By T. R. Spence

The Effects of a Collision

H. M. S. Australia

St. Theodore, Venice

The Specific Heat of Liquid Ammonia

By C. Ludeking and J. E. Starr

Improvements in the Manufacture of Borax

By H. N. Warren

Gleanings from the German Journals

By Frank X. Moerk

Sibley College Lectures.—1892-93

By the Cornell University Non-Resident Lecturers in Mechanical Engineering

By John W. Langley

Confetti and Serpentines

The Position of Pathology among the Biological Sciences

By Rudolf Virchow

Useful Engineering Books


Fertilization and Hybridization


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    May 13, 1893

    Science for the Modern World