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George Jones of the New York "Times"

Strains on Railroad Bridges

Dr. C. V. Riley

A Boat Propelling and Steering Device

A Combined Plumb and Level

Improvements in Elevators

The Breeding Habits of the Skate

By W. M. P. Seal

Tests of Magazine Small Arms

Albert Benjamin Prescott

Color of Snakes as Affected by Climatic Influences

By G. R. O'reilly

Departments

  • Departments

    Business and Personal- August 22, 1891

  • Notes and Queries- August 22, 1891

  • Recently Patented Inventions- August 22, 1891

  • Index of Inventions- August 22, 1891

  • To Inventors- August 22, 1891

  • Patents!—August 22, 1891

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