34 Sweden. 



miles farther down the river are some smaller falls, and the same 

 "dodge" of the sluices on a smaller scale is again called into 

 requisition. 



Parallel to the Wenern lies another lake, the Vettern, at a dis- 

 tance of about thirty miles, through which a canal runs between 

 the two lakes. The Vettern is nearly as long as the Venern, but 

 not half so broad, and its area is little more than 120 square 

 English miles. The water of the Wettern (for it is immaterial 

 whether we spell these lakes with a V or a W) is clearer and 

 deeper than that of the Wenern in many places above 400 feet 

 and I should fancy the bottom must be different, for no charr are 

 taken in the Wenern, whereas the largest charr in Sweden are met 

 with in the Wettern -, otherwise I should fancy the fish fauna of 

 the two lakes differs but little. 



Having now slightly sketched the locality, let us proceed to its 

 fauna ; and, first, I will notice such species of birds as to my own 

 knowledge breed on and around the Wenern. 



Of the gulls, they have the common gull (Larus canus, Lin.) 

 in all parts ; the lesser black-backed gull (L.fuscus, Lin.) common; 

 and the greater black-backed (L. marinus, Lin.) by no means rare 

 in some places. 



Of the terns, I never could identify more than two species 

 breeding here the common tern {Sterna kirundo, L.), and the 

 large Caspian tern (S. Caspia, Pall.), although in the fall of the 

 year I have met with the black tern (S. nigra, Briss.) evidently 

 bred in the neighbourhood, and Richardson's skua (Lestris Richard- 

 sonii, Sw.) shot on the Wenern. 



Of the divers, we had both the black- throated (Colymlus arcticus, 

 L.) and the red-throated (C. septentrionalis, L.) ; and, as far as my 

 observation goes, the black-throated diver is the most common in 

 the north of the Wenern. 



I never heard of a wild swan or any of the wild geese breeding 

 here, although we had plenty of both during the seasons of 

 migration. 



Indented as the shores of the Wenern are with small shallow 



