Conductivity along a Glow Discharge and in Flames. 357 



Our first experiments were made with trains of damped 

 oscillations generated by a Blondlot exciter producing waves 

 of 150 cm. length. When with such an exciter galvano- 

 metric measurements giving the M.S. current in the resonator 

 are made, it is advisable to make the spark under oil as short 

 as possible, so that an early quenching sets in permitting the 

 oscillator to vibrate with a small decrement in its own natural 

 period. The induction-coil was fed with alternating current, 

 and water-resistances were inserted between the coil and the 

 spark, making the latter as constant as possible. 



Fig. 5. 



As an instance of the results thus obtained we give the 

 curve of fig.. 5 obtained with a striated discharge through 

 Hydrogen (t = l*l x 10~ 3 amp.). Here the ordinates of the 

 curve M represent the galvanometer deflexions, while the ab- 

 scissae give the positions of the various, parts of the discharge 



