30 EEPORT ON NATIONAL MUSEUM, 1886. 



soiiinn Institution in 1SG9. More attention is given in the present work 

 to tlic subjects of geograpliical distribution, organs of generation, lin- 

 gual dentition, and classitication ; and species are grouped gepgrapli- 

 ically. 



Bulletin _!!). "•Hesults of ORNrrnoLOGicAL Explorations in 

 THE Co:\niANDER ISLANDS AND IN Kamtsciiatka," by Leouliard 

 Stejneger; 8 vo., p. 382; 8 colored x^lates and map. 



This work is the result of the author's explorations in the Commander 

 Islands and in Kamtschatka, and contains the conclusions at which he 

 has arrived after careful examination of the avifauna of thai region, his 

 investigations being based both upon material observed and collected 

 by himself, and also upon specimens in the coUectiou of the ^JTational 

 Museum. Tljis bulletin consists of three sections: (1) A review of the 

 species of birds collected or observed by the author at the Commander 

 Islands, and at Petropaulski, Kamtschatka ; (2) a sj^ nopsis of the birds 

 reported to inhabit Kamtschatka; and (3) conclusions. 



The first section, which occupies the larger portion of the work, con- 

 tains one hundred and forty descriptions and numerous tables. Be- 

 sides technical descriptions there are references to the habitsof the birds, 

 and a few illustrations. 



The second section, a synopsis of the birds reported to inhabit Kamts- 

 chatka, contains a list of one hundred and eight} -six species, an at- 

 tempt being made to enumerate all the species whicli have been recorded 

 from that i^lace. A few names of species accredited to Kamtschatka 

 without any reliable authority for the statements, are also included. 



The chief sources from which knowledge of the Kamtschatkan ornis 

 is derived, are the explorations of Steller, Vossnesseuski, von Kittlitz, 

 and Dybowski ; and the author has based some of his statements upon 

 their writings, as well as upon his own explorations. There is an ap- 

 l)endix to this section, incorporating information from " Listedes Oiseaux 

 du Kamtschatka et des lies Commaudenrs par le Dr. B. Dybowski et L. 

 Taczanowski," with comments by the author. 



The third part — conclusions — is based upon the two preceding sec- 

 tions of the work. The relations of the avifauna of the peninsula to 

 that of the islands are briefly discussed, and are exhibited chiefly in the 

 form of tables giving the circumpolar, pahearctic, Pacific, American, 

 Siberian, East Asiatic, and other forms. The resi<lents and migrants 

 are described at some length, and are catalogued in tables. 



Bulletin 30. Bibliography of Pullications relating to the 

 Collection of Fossil Invertebrates in the United States 

 National Museum, including complete lists of the writings 

 OF Fielding B. Meek, Charles A. White, and Charles I), Wal- 

 COTT, by John Belknaj) Marcou, 8vo., pp. 333. 



This Bulletin is third in the series of "Bibliographies of American 

 Naturalists," and consists of four parts: i, A biographical sketch and 

 list of the published writings of Fielding B. Meek ; ii, Published writ- 



