INVESTIGATION OF OYSTER SPAWNING, ETC., MILFORD, CONN. 



441 



the clearness of the day and the number of hours of sunshine that are possible at 

 that time of the year. During July the total number of hours of possible sunshine 

 for this latitude is 458.3, and there is a gradual decrease in the number of hours per 



TIME OF OYSTER 

 SPAWNING 



■< 



[600 

 500 

 400 

 300 

 200 

 100 



2ao 



260 



240 



220 



200 



160 



160 



140 



70 



60 



SO 



40 



50 



20 



II 



10 



9 



8 



5 



4 



3 



2 



I 







JAW FEB. MAR. APR MAY JUN. JUL. AUG. 5EPT OCT NOV. DEC 



Figure 6. — Normal climatology for New Haven, Conn., taken from records of the United States Weather Bureau 



day from 15.1 on July 1 to 14.4 on July 30. For the month of August the total 

 number of hours is 426.9, and there is a gradual daily decrease from 14.3 on the 1st to 

 13.2 on the 30th. In July we normally have sunshine for 302 hours, or 66 per ent of 

 the total possible number for this month, and in August for 265 hours, or 62 per cent. 



