ABOUT THE LINE. 1751. in 



white, with white fides ; on the upper fide 

 black with two large white fpots : the quills 

 are white with black points; the three Jirjl are 

 the longed ; twelve or more lejfer ones are 

 joined by them, and next to thefe again ten 

 longer fecondary ones : the outfide of the quills 

 is black ; as the next decreafe in fize, fo their 

 black margin decreafes, and the reft of the 

 ihort ones have only black tips : the greater 

 coverts of the wings are white with black 

 tips, and the lejfer ones are quite black : the 

 lower coverts are quite white, except thofe at 

 the extremity, which are black. The four- 

 teen outward feathers of the tail are fliort, 

 and white with black tips ; the others are of 

 the fame number, and are covered at the top 

 and below: the thighs are covered to the 

 knees, partly with the vent feathers, and part- 

 ly with their own down : the toes are palmat- 

 ed, and, like the legs, of a dirty black co- 

 lour: the web of the toes is very (lightly 

 notched : the outward toe is the longeft, and 

 has five articulations ; the middlemen: has four 

 articulations, of tnrhkh thofe two which are 

 nearefl the bafe of the toe are white on one 

 fide : the outward toe of the three fore toes 

 has but two joints, and is whitiih on the inner 

 fide ; the fourth or back toe is the ihortef:, for 



it 



