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SELIG HECHT 



relation. For different series of individuals he got different re- 

 sults, and because of the small number of fishes studied, arrived 

 at no definite conclusions. But in the light of the later work of 

 Heincke et al. ('07) and of Johnstone ('14), his variations are 

 easily explainable. 



II U 13 14. 15 16 17 18 19 20 



Lehgth -Cms. 



Figure 3 



Working with the same species. Meek ('03) found, upon 

 plotting a large number of cases, that weight is a function of the 

 cube of the length. Apparently unaware of this work, Fulton 

 ('04) tested. the same idea- on several species of fish. He found 

 that weight above a certain point increases at a greater rate than 



