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The Gould-Scientific American Prize, The Preservation of Niagara Falls and more

Sir Hiram Maxim

The Autobiography of a Veteran Inventor

Our National Earthquake Recorder

Feeling the Earth's Pulse

By Emma M. V. Triepel

Uncovering the "Maine"

How the Work at Havana is Progressing

Identification of Dye Woods, New Aeroplane Speed Records in France

John D. Hooker and the One Hundred-inch Reflector

A Business Man Who Took an Interest in Astronomy

By Mary Proctor

Longer Piers for Giant Steamships

Arrival of the 882 1/2-foot "Olympic" at New York

Dynamite as a Railroad Builder

High Explosives as One of the Principal Agents in the Building and Reconstruction of Our Railroads

By Willard Young

Catskill Water Supply Tunnel Below the Hudson River

How the Aqueduct Will Make an 1100-foot Dip Below the Gorge

Abstracts from Current Periodicals - June 24, 1911

Phases of Science as Other Editors See Them

Learning How to Fly

Hints from a Professional Aviator

By Antony H. Jannus

A Good Glue Clamp

By Charles Cloukey

How to Rebore an Engine Cylinder on a Common Lathe

By J. A. Bergstrom

Fishing for Bolts

By G. H. Ander

The Inventor's Department - June 24, 1911

Simple Patent Law; Patent Office News; Inventions New and Interesting

How I Invented the Air Brake--II, Legal Notes

By George Westinghouse

Leicester Allen, The Current Supplement


  • Letters

    Correspondence - June 24, 1911

  • Recommended

    New Books, Etc. - June 24, 1911

  • Departments

    Recently Patented Inventions - June 24, 1911

  • Notes and Queries - June 24, 1911

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