CLASS-BOOK OF ZOOLOGY. 



105 



2d Order: Lizards. 

 16. The Blue-tailed Skink. | 17. The Brown Swift. 



3d Order: Tortoises. 



Authorities for the Natural History of Reptiles. 



C. de Lacepede, Histoire Naturelle de Quadrupedes ovipares et de 

 Serpens. 

 A. Brongniart, Classification des Reptiles. 

 Th. Pennant's British Zoology. 



L. Oken's Allgemeine Naturgeschichte fiir alle Stande. 

 Annals of the Lyceum of Natural History of New York. 

 Blumenbach's Handbuch der Naturgeschichte. 

 Le Cunte's Description of the Species of North American Tortoises. 

 Harlan's Genera of North American Reptiles. 

 Holbrook's North American Erpetology. 

 Fontana, Sulla Storia Naturale dei Serpenti. 

 James E. De Kay's Zoology of New York. 



