Curtis, J., Esq. page 



On a Species of Bee {Tricjona, Jur.) from South America . 118 



Daniell, G., Esq. 



On the Habits and Economy of two British Species of Bats 129 



Derby, The Right Hon. the Earl of 



Letter on the Breeding of the Sandwich Island Goose (Ber- 

 nicJa Sandvicensis, Vig.) 41 



Letter on the Breeding of several Birds in His Lordship's 

 Menagerie at Knowsley 81 



Desjardins, M. J. 



Letter accompanying a Collection of Objects of Zoology, 

 chiefly Mammalia and Birds, from the Mauritius 57 



FoLnoTT, G., Esq. 



On a Collection of Birds from North America, presented by 14 



Geoffroy St. Hilaire, M. 



On the Structure and Use of the Monotrematic Glands, 

 and particularly on those Glands in the Cetacea 26 



Gould, Mr. J. 



On a Collection of Birds from North America, presented by 

 Mr. FoUiott 14 



Characters of three New Species of Trogon in the Collec- 

 tion of the Society 25 



Character of a New Species of Plover (Vanellus, Linn.) 

 collected by Lieut. Allen in Western Africa 45 



On a Collection of Birds formed by Mr. Abbott in the 

 neighbourhood of Trebizond 50 



Characters of the Genera and Species of the Family 

 Ramphastida, Vig 72 



On a Collection of Birds from Nepaul, presented by B. H. 

 Hodgson, Esq 115 



On a second Collection of Birds from the neighbourhood of 

 Trebizond 133 



Characters of a New Species of Toucan . , 147 



Gray, J. E. Esq. 



Characters of a New Genus of Radiata (Ganymeda) .... 15 



Note on the Conveyance from the Mauritius to England of 

 two living Specimens of the Cerithium armatum, Brug 22 



Characters of a New Species of J5a^ {Rhinolophus , Geoff'r.) 

 from New Holland 53 



Characters of several New Species oi freshwater Tortoises 

 (Emys) from India and China 53 



Note on the Cistuda Bealii, Gray, referred to the Genus 

 Emys 54 



Notice of Two Varieties of the Cistuda Amhoinensis, Gray 54 



Characters of New Species of Shells 57, 63 



