134 



REPOHTiS ON TllE STATE OF SCIENCE. — 1915. 



frequency daring the three months March, April, and May; and I 

 suggest that, when a sufficient quantity of data has been accumulated, 

 the maximum may be found to occur in April (see fig. 4). All the 

 foetuses of 1911, 1913, and 1914 are included in the above figures. 



Table I. — B. physalus. List of Specimens. 



Table III.- 



Date when 

 Measured 



June 24 



-B. borealis Lesson. 

 Sex 



One Specimen. 



Total 



Length 



Ft. in. 



39 



