208 



be found described and figured in the seventeenth volume 

 of the Transactions of the Linnean Society. 



The second species of North- American Swan was de- 

 scribed by Dr. Sharpless, in the fifth volume of the Ame- 

 rican Journal of Science and Arts, under the name of Cyg- 

 nus Americanus ; it has aTso been described more recently 

 by Mr. Audubon, in the fifth volume of his Ornithologi- 

 cal Biography. I have been presented by both these gen- 

 tlemen with the organ of voice and the sternum from seve- 

 ral examples of this second species of American Swan, 

 which, however, in some respects, internally as well as 

 externally, resembling our Bewick's Swan, is said to attain 

 a size and weight almost equal to those of our Hooper ; 

 the whole length is recorded as reaching four feet six 

 inches, and the weight twenty-one pounds. 



The anatomical representations of Bewick's Swan, ne- 

 cessarily very much reduced in size here, will be found 

 of much larger dimensions in the sixteenth volume of the 

 Linnean Transactions. 



