Recently published Ornitholo<jical Works. 355 



55. Cones on the Birds of the Colorado Valley. 



[Birds of the Colorado Valley, a Repository of Scientific and Popular 

 Information concerning North American Ornithology. By Elliott Cones. 

 Part I. Passeres, to Laniidae. U.S. Geol. Survey of the Territories. 

 Miscell. Publications.— No. 11. 1878.] 



Although nominally relating only to the species found 

 in the great Colorado basin, this publication seems to be 

 the first portion o£ a new and important work on North- 

 American Birds, from the pen of one of the most active and 

 competent ornithologists of the United States. The present 

 volume contains the Passeres as far as the end of the 

 Laniidae, and gives characters of each genus and species and 

 very full synonymy. Long field-notes of the most inter- 

 esting character are also given. References to the " extra 

 limital " species are added in footnotes. But a most im- 

 portant part of the work is the ' Bibliographical Appendix/ 

 containing the " titles and digests of works and papei"s re- 

 lating solely to the birds of North America indiscriminately, 

 collectively, or in general,^'' and forming the North-American 

 section of the " Faunal Publication series " of the author^s 

 'Bibliography of Ornithology.'' The titles are arranged 

 chronologically, commencing in 1612; but indices of the 

 authors and localities are added. 



We trust that Dr. Coues may succeed in carrying out his 

 plan of treating the whole of ornithological literature in the 

 same manner ; for no work could more materially assist the 

 progress of our favourite branch of science. 



56. Fischer and Reichenow on Birds from Zanzibar. 



[Uebersicht der von Dr. G. A. Fischer auf Sansibar und wahrend einer 

 Eeise durch das KUstenland von Mombassa bis Wito gesammelten oder 

 sicher beobachteten Vogel. Von Dr. G. A. Fischer und Dr. Ant. Reichenow. 

 J. f. 0.1878, p. 247.] 



The list of birds obtained or observed by Dr. Fischer in 

 Zanzibar, and during his journey on the mainland from 

 IMombassa to Wito contains 158 species. Two of the new 

 species have been already described in the ' Ornithologisches 

 Centralblatt ' for 1878 (p. 88), viz. Pyrenestes unicolor from 



