570 Letters, Extracts, Notices, 8^~c. 



observe that he does not include in his list of the species of 

 the latter genus M. nehrkorni, uhich was discovered by 

 Dr. Platen in Mindanao, and was described by Dr. W. Blasius 

 in Cabanis's Journal for 1890 (J. f. O. 1890, p. 147). Dr. 

 Blasius remarks that this species may possibly be the Mus- 

 cicapa luzonensis, Gra., which was insufficiently described 

 and has not been recognized since. 



In case the members of the British Ornithologists' Club 

 would like to examine the type specimen of M. nehrkorni 

 which is in my collection, I shall be glad to send it to you 

 for that purpose, and hope that Dr. Sharpe will comijare it 

 with examples of M. melaiioleucus * . 



I am. Sir, 



Yours &c,, 

 Riddagsbausen, Brunswick, A. Nehrkorn. 



July 14, 1894. 



Sir, — In the last number of ^The Auk ' f I find some 

 critical remarks by Mr. Ridgway on certain parts of my 

 'Catalogue of the Game Birds in the "British Museum.' 

 I regret to observe that Mr. Ridgway introduces into his 

 remarks expressions which, on this side of the Atlantic, 

 would be considered almost offensive, and which surely ought 

 not to find any place in a scientific controversy. 



In his 'Manual,' p. 191, Mr. Ridgway recognizes two 

 distinct subspecies of the Mountain-Partridge. One form, 

 which I shall refer to as "A," Oreortijx "pictus (Dough), is 

 said to range along the '' Pacific coast district, from San 

 Francisco north to Washington Territory," while the second 

 (B), which is styled 0. pictus plumiferus (Gould), is said to he 

 confined to " Sierra Nevada (both sides) from Oregon south- 

 ward; southern coast district of California?, Lower Cali- 

 fornia ? " "A " is described as " above deep olive-brown or 

 umber, this colour usually continued uninterruptedly over 

 hind neck to the crest ; inner edges of tertials deep buff or 



* [In Dr. Sharpe's note above referred to, the second specific name, 

 " melanoccphalifs," appears to have been a laiims calami for melanoleucus. 

 Thi" specimen has arrived safely, and shall be comjtared. — Ed.] 



t Aulc, xi. no. .S, p. 19.3 (1894). 



