FISHERY BOARD FOR SCOTLAND. 



SCIENTIFIC INTVESTICATIONS, 



1912. 



No. I. 



ON THE EGGS OF CERTAIN SKATES {RAIAy 

 (with 5 Plates). 



BY 



Dr. H. C. WILLIAMSON, M.A., D.Sc, F.R.8.E., 

 Marine Laboratory. Aberdeen. 



This paper may he referred to as : 

 ''Fisheries, Scotland, Sci. Invest., 1912, I." (July, 1913). 



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