[hunter-ward] 



PURINE METABOLISM 

 Table II 



Order and 

 Species 



Per cent of Purine- Allantoin 

 Nitrogen 



Allantoin 



Uric Acid 



Bases 



Uricolytic 

 Index 



Marsupialia 



Opossum . . . 

 Rodentia 



Rat........ 



Mouse 



Guinea-Pig. 



Rabbit 



Carnivora 



Raccoon 



Black Bear. 



Badger 



Cat 



Coyote 



Dog 



Dingo Dog. 



Coach Dog. 

 Ungulata 



Cow 



Horse 



Sheep 



Goat 



Pig 



Prohoscidea 



Elephant . . . 

 Primates 



Monkey. . . . 



Chimpanzee 



Man 



76-0 



7 

 8 

 



19-0 



90 



6-0 



79 



96 

 98 

 94 

 95 



95 

 94 

 98 

 97 

 97 

 98 

 96 

 32 



93 

 88 

 80 

 92 

 98 



72 



89 

 



2 



The data thus assembled illustrate the following types of purine 

 metabolism : 



(1) The apparently predominant type, exemplified mainly by 

 carnivora and rodents, in which bases as well as uric acid play a 

 relatively insignificant role among the excretory products, and a 

 uricolytic index of at least 94 implies the almost complete destruction 

 of intermediary uric acid. It is possible that this type may prove to 

 be susceptible of subdivision, for the rodents appear in general to 

 excrete a distinctly higher proportion of uric acid than the carnivores. 



(2) One in which the proportion of bases remains low, but that 

 of uric acid increases, so that the uricolytic index, in no case higher 



