Recfiiit OniithoJoyical Publications. 425 



in the prosperity of the Academy, and scientitic knowledge, has 

 never failed to be exerted, and always has been of great value in 

 the extension of the collection. Mr. John Krider, Mr. William 

 S. Wood, and J\lr. James Taylor of this city, have also furnished 

 to Dr. Wilson many valuable specimens ; and all of these gen- 

 tlemen have invariably shown the utmost cheerfulness and libe- 

 rality in their business with the Museum of the Academy. 



" The collection now presented by Dr. Wilson has been de- 

 rived from the following sources, and includes specimens nearly 



as here enumerated : — 



Specimens. 



Rivoli collection, first purchase 12,500 



Rivoli collection, 2nd purchase 2,500 



Mr. Gould's Australian collection 2,000 



M. Bourcier's collection 1,000 



Capt. Boys's collection 1,000 



Mr. Edward Wilson's collections in Europe, including col- 

 lections from the Leyden and British Museums 4,500 



Dr. Thomas B. Wilson's collections in Europe 1,000 



Dr. Thomas B. Wilson's collections iu the United States. 1,500 



Total now presented to the Academy 26,000 



" It may be of interest to add, that the collection previously 

 owned by the Academy comprises about 3000 specimens, in- 

 cluding a very superior North-American series derived from 

 nearly all ornithologists in the United States, who have in- 

 variably shown the greatest interest in the formation of the 

 large collection of this Academy. The aggregate number of 

 specimens exhibited, and now belonging to the Academy, is 

 therefore about 29,000 birds.'' 



The second part of Mr. Cassin's Catalogue of Birds collected 

 during the Darien expedition is given, p. 188, A new and 

 remarkable type among the Formicariida is named Pittasoma 

 michleri. We hope i\Ir. Cassin will eventually give us a figure 

 of this interesting species. The total number of species collected 

 during the expedition amounts to 144. 



We have to acknowledge Prof. Baird's kindness in sending us 



a copy of the two handsome volumes* formed by a reissue of 



* ' The Birds of North America ; the descriptions of species chiefly 



2 G 2 



