392 



G. G. SCOTT. 



TABLE III. 



Lot G. 



Lot H. 



Lot I. 



In order to test the same question further a third experiment 

 was set up as follows : Three lots of fishes G, H and I were 

 operated on as follows. In G the caudal fin alone was cut off; 

 in H the caudal and one pectoral ; in I the caudal, one pectoral 

 and the dorsal. All the fish were placed in a large aquarium 

 with running sea water and were fed regularly. The experiment 

 was begun on September i and continued until September 14, 

 1906. Since all the fish were kept in the same tank there is 

 opportunity for ascertaining whether the discrepancy in case of 

 lot E might not be due to some condition peculiar to the com- 



