Vol. xix.] 02 



G. M. Mathews, G. Meade-Waldo, D. H. Meares, H. Par- 

 sons, E. Penton, Lord William Percy, R, I. Pocock, J. B. 

 Sargent, G. Schwann, Percy Smyth, G. Witherby. 



With reference to the quarrying operations on Ailsa Craig 

 referred to in the last number of the ' Bulletin/ the following 

 letter was read from the Marquis of Ailsa : — 



"The Marquis of Ailsa has duly received the copy of the 



' Bulletin of the British Ornithologists^ Club/ forwarded by 



the Editor at the request of the Members of the Club, and 



with reference to the paragraph on page 56 respecting 



quarrying operations on Ailsa Craig, Lord Ailsa writes to 



assure the Editor that the Hon. Walter Rothschild and the 



Members of the British Ornithologists' Club need have no 



fear that such operatious will be a grave danger to the birds 



breeding there. ^^ 



" 65 Lanca.^ter Gate, W., 

 8th March, 1907." 



Mr. C. E. Hellmayr described and exhibited examples of 

 tAvo new Spine-tailed Swifts from South America, and 

 proposed to call them 



CHiETURA CHAPMANI, Sp. U. 



C cinereicauda, Hartert (nee Cass.), Cat. B. Brit. Mus. 

 xvi. p. 482 (1892) (Rio, errore\). 



Adult. Nearest to C. pelagica (Linn.) from the Eastern 

 United States, the spines of the tail-feathers being much 

 elongated, as in that species, but it differs in having tlie 

 pileum and mantle black glossed with steel-blue (instead of 

 sooty brown) ; the throat smoky brown, like the rest of the 

 underparts (not clear whitish), and the rump and upper 

 tail-coverts rather paler. Wing 120; tail 48; bill 5i mm. 

 Hab. Island of Trinidad and Cayenne. 

 Type in the Tring Museum : ^ ad.. No. 60645. Caparo, 

 Trinidad, 27. iii. 94. Obtained by Mr. F. M. Chapman. 



Obs. There are three specimens from Trinidad (Caparo 

 and Valencia) in the Tring Museum and two in the British 

 Museum. The latter, though labelled '^ Brazil,'^ are of the 

 unmistakable Cayenne-make, and diftbr only from the 



