744 



HUMMING-BIRD. 



N- 37 . 



Cayenne H. B. 



N°48. 



Tobago H. B. 



38. 



Black H. B, 



49. 



Guiana H. B. 



39- 



Sapphire H. B. 



50. 



Black and blue H. B 





Var. A. 



51. 



Carbuncle H. B. 



40. 



Sapphire and Emerald 



52. 



Racket-tailed H. B. 





H. B. 



S3- 



Crefted green H. B. 



41. 



Dufky -crowned H. B. 



54- 



Crefted brown H. B. 



42. 



Brown-crowned H. B. 



SS- 



Tufted-necked H. B, 



43- 



Gold-throated H. B. 



56. 



Ruff-necked H. B. 



44. 



Grey-bellied H. B. 



57- 



Blue-fronted H. B. 



45- 



Little brown H. B. 



58. 



AU-green H. B. 



46. 



Ruby-necked H. B. 



S9> 



Amethyftine H. B. . 



47- 



Ruby-crefted H. B. 



60. 



Leaft H. B. 



BIRDS of this genus have 

 The bill flender and weak, in fome incurvated, in others 

 (trait -, noftrils minute. 



Tongue very long, formed of two conjoined cylindric tubes; 

 miffile. 



Toes three forward, one backward. 

 Tail confifts of ten feathers. 

 Legs weak. 



The following are divided into two families, the one with curved 

 hills, the other with fir ait ones : which appears to be far better than 

 making two genera of them, as fome authors have donej efpecially 

 as they have identically the fame organs, and method of providing 

 themfelves with food, as well as general manners. 



The 



