THE NATURAL PERIOD OF LINEAR CONDUCTORS 419 



Ives, J. E. Phys. Rev., 30, 199, 1910. The wave length and overtones of a linear electrical oscillator. 



Blake and Ruppersberg. Phys. Rev., 32, 449, 1911. On the free vibrations of a Lecher system 

 using a Blondlot oscillator. 



Blake and Sheard. Phys. Rev., 32, 533, 1911; 35, 1, 1912. On the free vibrations of a Lecher 

 system using a Lecher oscillator. 



Severinghaus and Nelms. Phys. Rev., 1, 411, 1913. Multiple reflection of short waves from 

 screens of metallic resonators. 



Nelms and Severinghaus. Phys. Rev., 1, 429, 1913. Resonators for short electrical waves. 



Arkadiew, W. Ann., 45, 133, 1915. Uber die Reflexion Elektromagnetischen Wellen an Drahten. 



Abraham. Jahr. d. D. T. u. T., 14, 146, 1919. Die Strahlung von Antennen Systemen. 



Dunmore and Engel. Bur. of Stand. Sci. Paper No. 469, Apr. 11, 1923. Directional radio trans- 

 mission on a wave-length of ten meters. 



Tatarinoff. Jahr. d. D. T. u. T., 30 (Oct.), 1927. 



