Skip to main content


Science and Spiritualism

A Pertinent Question

A False Alarm

The Transplantation of Nerves

Speed and Air Resistance in Cycling

Method of Transferring Photographic Films

Meeting of the American Association for the Advancement of Science

Armor Plate for Bank Vaults

Water-Tube Boilers for our Warships

By Lieut. G. L Carden

Prevention of Collisions at Sea

An Ingenious Bicycle Gear

Automobile Brougham for a City Physician

An Improved Hanger for Grindstones

The Mosasaurs

By L. P. Gratacap

The Mossberg Tire-Bell

The Theory and Construction of Ball Bearings

By W. H. Hale

Typical Perpetual Motion Fraud

The Proposed East River Tunnel

"Deutschland"--The Latest and Fastest of the Transatlantic Liners


  • Recommended

    New Books, Etc - July 1, 1899

  • Departments

    Recently Patented Inventions - July 1, 1899

  • Index of Inventions - July 1, 1899

  • Business and Personal - July 1, 1899

  • Notes and Queries - July 1, 1899

  • Patents - July 1, 1899

Purchase To Read More

Already purchased this issue? Sign In to Access
Select Format
July 01, 1899

20% Sitewide for President's Day