144 NAMES AND PROPOSITIONS. 



connoted by bird, the phenomenon web-feet is some- 

 times coexistent: "Some birds are not web-footed," 

 asserts that there are other instances in which this 

 coexistence does not have place. Any farther expla- 

 nation of a thing which, if the previous exposition 

 has been assented to, is so obvious, may well be 

 spared. 



