426 



CM. CHILD 



from piece to piece in the posterior direction except in the last two 

 pieces where there is httle difference. 



After twelve hours (table 10) this stimulation has disappeared 

 and now the susceptibility decreases from piece to piece in the 

 posterior direction, i e., the original axial gradient has reappeared. 



At twenty-four hours the relative susceptibilities of the one- 

 eighth pieces remain about the same as at twelve hours. In table 

 1 1 (forty-eight hours) some slight irregularities in the susceptibihty 

 of different pieces appear. Lot 1 is most susceptible, Lot 2 less 



