INORGANIC RESPONSE 



I2 5 



responses are undergoing a diminution, or tending 

 towards the normal. After continuous stimulation or 

 tetanisation (T), it will be seen that the abnormal or 

 4 up ' responses are converted into normal or ' down.' 



I shall now give a record which will exhibit an 

 exactly similar transformation from the abnormal to 

 normal response after continuous stimulation. Here 

 the normal responses are represented by ' up ' and the 

 abnormal by ' down ' curves. This record was given 



by a tin wire, which had been 

 molecularly modified (fig. 76). 

 We have at first the abnormal 



Before T After 

 FIG. 76 



Before 



After 



Abnormal 'down ' response in tin (fig. 76) and in platinum (fig. 77) transformed 

 into normal ' up ' response, after continuous stimulation, T. 



responses ; successive responses are undergoing a 

 diminution or tending towards the normal ; after con- 

 tinuous stimulation (T), the subsequent responses are 

 seen to have become normal. Another record, obtained 

 with platinum, shows the same phenomenon (fig. 77). 

 On placing the three sets of records nerve, tin, and 



