ble would enable the survey to be carried on much more there proceeds immediately with their computation and efficiently, as with a non-magnetic vessel the necessity quantity. discussion. The preliminary results as fast as they The great value of the magnetic work in the Pacific for swinging ship… … and carries along life-size ture work the Carnegie Horizontal Force Instrument Devised by the Ritchie United States Navy Standard Compass leathern manikins, liv- Institution has under con- Department of Terrestrial Magnetism. and Azimntb Circle for Determining the| ing dogs, and even bottles…
Magnetic · Rubber · Automobile · Turbines · Apparatus · Scientific American · Cable · Union Pacific · Thumb nut · Rubber boots · American february · Magnetic work · York city · Driving wheels · Magnetic survey · Sand mold
Internet Archive · Public domain (published before 1931). Free to use for anything.
