OF DENISON UNIVERSITY. 17 



To recall briefly the leading points : 



1. Nodes could be located on the parallel wires to within -^ 

 of the internodal interval. 



2. Resonance systems are injured in sharpness by placing the 

 secondary plates very near the primary. 



3. The effect of diminishing the distance between the parallel 

 wires (from 8 to 3 cm.) is to (a) reduce the energy of the stationary 

 waves to one-third of their former value and (l^) to shorten the inter- 

 nodal interval. 



4. The wire-equivalent of the capacity of the secondary plates 

 is practically the same, when the wave length is considerably 

 changed. This does not harmonize with the experience of Lecher. 



5. If the parallel wires are made to pass through a vessel of water 

 70 cm. long, capacity added to the remote ends does not affect the 

 resonance system in the wires, either within or without the vessel. 



Most of the experimental work described above was done at the 

 University of Berlin under the direction of Dr. H. Rubens, but the 

 later portion in the laboratories of Denison University, Ohio. 



