150 Mr. O. V. Aplin on the 



in selecting Mr. O. V. Aplin, author of the ' Birds of Ox- 

 fordshire/ and a well-known field-naturalist, as fully qualified 

 for the post. IMr. Aplin, in order to arrive in Uruguay at 

 the best time of year, deferred his departure from England 

 until the following September. As he has given us a full 

 account of his expedition and its results in the present 

 paper, I need say little more upon this part of the subject ; 

 but I will just mention, shortly, what are the previous 

 authorities on the birds of Uruguay with which I am 

 acquainted. These are as follows : — 



1. Darwin, who, during the celebrated voyage of the 

 'Beagle^ (1832), made a collection of birds at Maldonado, 

 Montevideo, and other localities on the shores of Uruguay, 

 most of which are now in the British Museum. Darwin^s 

 field-notes were published in the Bird-volume of the Zoology 

 of the Voyage of the ' Beagle.^ 



2. Mr. John J. Dalgleish, who has published, in the 

 ' Proceedings of the Royal Physical Society of Edinburgh ' 

 (vols. vi. & viii.), two articles on collections of birds and eggs 

 sent to him by a correspondent in (Central Uruguay, accom- 

 panied by interesting field-notes. 



3. Mr. Alan Peel, from whom a small collection of skins 

 made atPaysandu and at other localities on the western borders 

 of Uruguay was received by the British Museum in 1870. 



4. Mr. MacNaught Campbell, F.Z.S., who travelled in 

 Uruguay and the Ai'gentine Republic in 1871, and made a 

 collection of birds, many of which are now in the Kelvin- 

 grove Museum at Glasgow, while a few of his duplicates are 

 in my possession. 



As regards Mr. Aplin's collection I need only say that he 

 brought home altogether 216 specimens, referable to 93 

 species. Besides these, other unmistakable species, ob- 

 served in life or obtained, raise the total number in 

 Mr. Aplin^s list to 139. Of these 139 species, only one 

 land-bird, namely, Conurus leucophthalmus (no. 78), has not 

 been mentioned in ' Argentine Ornithology ' as found in the 

 adjoining Republic. Besides this bird, however, three Petrels 

 {Daption capensis, Puffinus griseus, and Pelagodroma marina) 



