Lloyd's natural history. 



representatives of this Section that we have to deal in the 

 present volume. 



B.r.- 



■ 



Fio. i. — Ventral aspect of skull of Rook to show the regithoonathous 

 palate and bony siphonium : v- vomer; vipl.-p. maxillo-palatine pro- 

 cess ; //. palatine ; pg. pterygoid ; </. quadrate ; b.$. basi-sphenoid ; 

 j. r. sphenoidal rostrum. (From the Catalogue of Osteological 

 ecimens in the Museum of the Royal College of Surgeons.) 



SINGING BIRDS. SECTION A.-OSCINES. 



THE CROWS. FAMILY CORVIDiE. 

 ■ members of this family will be found some of 

 the most perfect, if one may use such an expression, of all the 

 Passeriformes. The structure of a Raven or a Crow presents 



