190 THE PRODUCTIVITY OF THE SEA [PART II 



Percentage composition of the dry substance of land crops. 



Brandt also gives the composition of the bodies of various 

 fishes and other marine animals ; the exoskeletons (shells and 

 carapaces) of the molluscs and crustaceans are not included. 



Percentage composition of the dry substance of some ynarine animals. 



For comparison with this table I quote the following analyses^ 



Percentage composition of the dry substance of the ivhole bodies of 

 farm, animals (contents of intestines, etc. excluded). 



Half-fat ox 



Fat ox 



Store sheep 

 Fat sheep . . 

 Store pig .. 

 Fat pig 



Fat 



i Ash 



43-8 

 47-4 

 51-1 

 70-5 

 58-6 



11-2 

 9-6 



8-4 

 5-5 

 6-7 

 3 



1 From results of the Rothamsted experimeut>^. 



- Include proteids, gelatinous substances and horny substances. 



