IX 



page 



Raddi, Professor. 



Exhibition of numerous Preparations illustrative of one of 

 the Processes of his New Method of Preserving Animal Sub- 

 stances 200 



Reeve, Lovell, F.L.S., F.G.S. &c. 



Description of Two New Species of Bulimus from the Col- 

 lection of Mrs. De Burgh 123 



Sandwith, Humphrey, C.B., Pres. of the Royal Society of 

 Arts and Sciences of the Mauritius. 



Notice of the Habits of the Aye-Aye of Madagascar 

 ( Chiromys madagascariensis) Ill 



SCHLAGINTWEIT, HERMANN. 



Exhibition of specimens of Heads of a Sheep from 

 Thibet, showing a curious modification in the form of the 

 Horns 350 



Sclater, Philip Lutley, M.A., F.L.S., Secretary to the 

 Society. 



Descriptions of New Species of the American family 

 Tyrannidce 40 



Description of a New Species of Owl of the genus Ciccaba 131 



Note on the Spurwinged Geese (Plect?'opterus) now living 

 in the Society's Gardens 131 



List of the first Collection of Birds made by Mr. Louis 

 Fraser at Pallatanga, Ecuador, with Notes and Descriptions 

 of New Species 135 



On some New Species of Synallaxis, and on the Geogra- 

 phical Distribution of the Genus 191 



Exhibition of two rare species of Arctic Birds — Colymbus 

 adamsi and Furinorhynchus pygmceus 201 



A Record of the number of Days of Incubation of Birds 

 which breed in the Society's Gardens 205 



Remarks on exhibiting specimens of Two Species of Divers 

 (Colymbus) from Mr. Gurney's Collection 206 



On a Collection of Birds from Vancouver's Island .... . . 235 



