THE RELATION BET'.TEEN BllAIlI V/EIGHT AlTD THE TIIvIE 

 KEQ,UIRED FOR HABIT FORIM-TION IH THE ALBIIIO RAT. 



A DISSERTATION 

 SUBMITTED TO THE BOARD OF UNIVERSITY STUDIES OP 

 THE JOHNS HOPKINS UN INTERS ITY 

 IN CONFORMITY WITH THE REQUIREJlIENTS FOR T.HE DEGREE OF 

 DOCTOR OF PHILOSOPHY 



BY 



G.\RDNER CHEITOY BASSET. 



