LIST 



OF 



CONTRIBUTORS, 



Wi(h References io the several Articks contributed by each. 



Bridges, Thomas, Esq. page 



Letter from, addressed to G. R. Waterhouse, Esq., con- 

 tainiug iiotices of Bolivian Mammals and Birds 7 



CuMiNG, HuGH, Esq. 



Desci'iptions of New Species of Chamą by Loveli Reeve, 

 coniiimnicated by . 117 



Fayreu, k. j., Esq., Lieut. R.N. 



Letter from, aecompanying sorae Specimens of the Bische 

 de Mer, or Trepang 67 



Fry, Edward. 



On the Osteology of the Active Gibbon {Hylobates agilis) 1 1 

 On the Relation of the Edentata to the Reptiles, especially 

 of the Armadillos to the Tortoises 72 



Gaskoin, j. s., Esq. 



Descriptions of three New Species of Cyprcea .... 23 



GouLD, John, Esq., F.R.S. 



On a New Species of Nyctihius 1 



Descriptions of eleven New Species of Australian Birds • 18 

 Descriptions of tiiree New Species of the family of Trochi- 



lidce 44 



Descriptions of six New Species of Birds 67 



Letter addressed to, detailing the circumstances of the 



death of Mr. John Gilbert 79 



Descriptions of t\vo Ne\v Species of Australian Birds . . 83 



On twenty New Species of Trochilidce or Humming Birds 85 



Descriptions of three New Australian Birds 106 



GuLLivER, George, Esq., F.R.S. 



Note on the Spermatozoa of the Polar Bear (Ursus mari- 

 timus) 11 



Note on the Size of the Blood-Corpuscles of Birds, \vith 

 Measurements by Dr. Davy of the Blood-Corpuscles of some 

 Fishes and of a Humming-Bird 26 



