ZOOLOGY. 



tity of leaves, &c.^ that some Naturalists have been induced 

 to believe that these birds do not incubate^ but that their eggs 

 are hatched by the heat engendered by putrefaction ; the 

 young take to the water as soon as excluded from the shell. 

 Several species are natives of Great Britain. British Orni- 

 ihologi/p vols. 1, 3. 



ORDER IX. 



Palmapedes. WEB-FOOTED, 



This order of Birds is conspicuously distinguished from 

 all the preceding, by having the three front toes in all, and in 

 some genera, the four toes united hy a membrane^ from 

 which circumstance it derives its name of Vv^ eb-Footed. 



Of the various genera composing this numerous family, 

 most kinds feed on fish, worms, insects, and rejectamenta of 

 the sea and rivers ; they all reside on the shores of the ocean, 

 or in the vicinity of large rivers and lakes ; but very few at 

 present will class among the positively useful, as far as 

 regards Man ; the Duck tribe alone has been selected for 

 domestication, and which now greatly contributes to the 

 comforts and luxuries of civilized life ; their flesh and eggs 

 serving as food, and their feathers and down also contribute 

 to the conveniences of Mankind. Excepting the extensive 

 genus of Ducks, the flesh of most kinds is rank, fishy, and 

 unfit as food for man, some of the kinds build on the ground, 

 others deposit their eggs without any kind of nest, in holes 

 in the earth i a few dig deep burrows in the banks of the 



