386 Annals of the Carnegie Museum. 



as it is, on good and sufficient material in either case. With respect 

 to Mstrclata vociferans, I am free to confess that when this work 

 was in its early stages I was by no means convinced that a good case 

 was to be made out, especially when all the reports came in to me 

 from so many large museums in America and Europe that there were 

 jio skeletons of any species of ^strelata in existence; or, if there 

 were, they could not pass out of the keeping of the institutions own- 

 ing them for the use of a private investigator engaged upon such 

 researches as are here set forth. However, as soon as a serious 

 study of the material was entered upon, it became evident that the 

 subfossil bird-bones of the " Cahow " of Bermuda belonged, without 

 question, to a Petrel and not to a Shearwater, as has heretofore been 

 generally supposed. It then remained but to prove to which species 

 they belonged; and, as the steps leading to this proof are very fully 

 demonstrated, point after point, in the present contribution, it is 

 obviously unnecessary to recapitulate them here. 



Note. — The collections made by Mr. Edward McGall and Mr. An- 

 thony Tall, listed on pp. 382 ct seq., which were presented by these 

 gentlemen to Dr. R. W. Shufeldt, have been turned over by Dr. Shu- 

 feldt to the Carnegie Museum, and have become its permanent prop- 

 erty. 



W. J. Holland. 



