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The American Ornithologists' Union CHECK-LIST OF NORTH AMERICAN BIRDS, Second Edition, i895 , Thoroughly Revised. The preface to this work defines its scope and object and includes selections from the A. O. U. Code of Nomenclature, of special importance in the present counection. The table of contents consisL? of a systematic list of orders, sub-orders and families of North American birds. The check-list proper gives the scieutific and common name, number in previous list, and geographical distribution of the ?,o68 species aud sub- species, constituting the North American Avilanrta. This is followed by a list of birds of doubtful status, and a list of the fossil birds of North America. This new edition has been carefully revised; the teecut changes in nomenclature and species and sub-species described since the publication of the first editiou in ?886 are included, while the portion rekiting to geographical distribution has been much amplified. CLOTH, 8vo. 372 Pages, Price, $2.00. ? ? ? THE AU}?: ? ? ? A Quarterly Journal of Ornithology. J. A. Allen? Editor, 1'. ?. Chapman Assoc. Editor. .As official organ of the Union, 'The Auk' is the leadiug oruithological publica- tion of this country. Each number contains about ioo pages of text, a handsomely colored plate, and other illustrations. The principal articles are by recognized author- ities and are of both a scientific and popular nature. The department of 'General Notes' gives brief records of new and interesting facts concerniug birds, contributed by obser- vers from ?roughout the United States and Canada. Recent ornithological literature is reviewed at leng? and uews items are commented upon by ?e editors. 'The Auk' is thus indespensable to those who would be kept informed of the advance made in the study of birds, either iu the mnseuul or in the field. Price 0fCurrent Volume, $3,00, Single Numbers? 75 cts, Wm. DUTCHER, Business Manager. Agent'or The Americau Ornitholog- 525 MANHATTAN AVE. ists' Union fdr the ?le of its Publica- tions. NEW YORK CITY.