that there is a coiTespoiideuce between the abuudauee of 

 whiting and the temperature of the sea water. It must 

 be confessed that results like this are very tantalising and 

 make one wish for more extensive series of statistical 

 figures.* I think, too, that they indicate the value of 

 exact hydrographical invest igations. 



"^rhe form of the curve for whiting should be noticed. 

 I'his curve is constructed from a great number of observa- 

 tions and ])i()l)ably yields a tolerably accurate picture of 



Jany Feby. Man A[)nl. May. June. July. Auq. Sept Oct Nov. Dec. 



Kig. 9. Ivelation between abundance of immature whiting and the 



temperature of the sea. 



the abundance of young whiting on the Mersey Shrimping 

 (jrrouiids. There is a n)inor maximum of abundance of 

 whiting in the month of March. This is due to an 

 immigration of fisli of the previous year's spawning. 

 Then in June the fish become scarce and immediately 

 begin to become more abundant, attaining the maximum 



* It ought to be possible to obtain daily temperature records 

 from the various lightships of! the coasts of Lancashire and Wales. 

 I would suggest that this be attempted. 



