132 



Dr. W. H. Eccles on an Oscillation Detector 



were obtained the curves of figs. 1 and 2. Fig. 3 was obtained 

 by applying oscillations of various amplitudes to the detector 



Fio, 2. 



2-0 



10 















VJ 









































*■"" 













0-2 



0-4 



0-6 0-8 



Fig. 3. 



10 



1-2 



1-4 Volt 



50 



40 



30 



20 



10 



w 















) 









/ 







J 



/ 





















w 2 



6 8 



10" 8 Watt 



while it is traversed by a suitable steady current, and 

 measuring the intensities of the resulting sounds ; and there- 

 fore expresses the relation between the energy given to 

 the detector and that appearing in the telephone circuit. 

 The curves given here are selected out of a number as repre- 

 sentative ones. The absolute values of the energy quantities 

 involved in the results given in this paper were determined 

 in the same way as in the former paper, and are therefore 



