V^ol. xix.] 56 



Mr. W. R. Ogil\ie-Grant exhibited examples of a new- 

 species of Alpine Swift procured by the members of the 

 Ruwenzori Expedition. He proposed to call it 



Cypselus maxtmus, sp. n. 



Adult male and female. Most nearly allied to C. africanus, 

 Temm., but much larger and darker. The top of the head 

 and upper part of the body dark sooty-brown with a slight oily 

 gloss ; the cheeks, ear-coverts, pectoral band, and upper and 

 under tail-coverts, as well as the outer webs of the quills and 

 the tail-feathers, even darker and inclining to sooty-black ; 

 the bill and tarsus are also proportionally longer than in 

 C. africanus. Iris dark hazel ; bill and feet black. 



^ . Total length ca. 8'5 inches ; culmen from the base of 

 the forehead 0'78, exposed portion 0*52 ; wing 9 ; tail 3"35 ; 

 tarsus 0"8. 



? . Total length ca. 8*8 inches ; culmen from the base of 

 the forehead 078, exposed portion O'S; wing 9'1 ; tail 3-45 ; 

 tarsus 0'81. 



Hah. Eastern slopes of Ruwenzori, 10,000-12,000 feet, 

 Jan., Feb., 1906. 



Obs. The type specimens of this Swift, which is probably 

 the largest species known, were obtained by Messrs. R. 

 E. Dent and Douglas Carruthers. Other specimens were 

 shot, but could not be retrieved. 



The Hon. Walter Rothschild drew attention to state- 

 ments recently made in the public press that extensive 

 quarrying operations were to be carried on at Ailsa Craig 

 during the next thirty years. He remarked that if these 

 rumours were well founded, such operations would be a 

 grave danger to the birds breeding there. He therefore 

 suggested that the matter should receive the serious attention 

 of the Club, and that the Marquis of Ailsa should be 

 approached on the subject. 



On behalf of the Migration Committee, Dr. F. G. Pen- 

 rose stated that the report of the observations made 

 during last spring was now complete, and he requested the 



I 



