
The SciencesMay 4, 1889
A New Galvanometer for Projection

A New Galvanometer for Projection

The Direct Optical Projection of Electro-Dynamic Lines of Force, and other Electro-Dynamic Phenomena
III. Helix And Solenoid

The Direct Optical Projection of Electro-Dynamic Lines of Force and other Electro-Dynamic Phenomena
II. loops.

The Direct Optical Projection of Electro-Dynamic Lines of Force and other Electro-Dynamic Phenomena