ABOUT LOBSTERS 



55 



If 4.7, the average percentage catch of the controls, is 

 used as the catchability index for untreated traps, the fol- 

 lowing indicates the comparative catchability for the several 

 treatments and materials used in descending order of catch- 

 ability: 



Although the results of these tests should not be con- 

 sidered absolute, Messrs. Dow and Baird state, they believe 

 the following conclusions are reasonable : 



1. The average cost of treatment is sixty cents. The 

 average time consumed in treatment is thirty-five min- 

 utes. 



