Vol. XVII 
1900 
frecent Literature. 395 
The present ‘ Catalogue’ is based largely on the work of the Canadian 
Geological Survey, Mr. Macoun having been collecting notes and obser- 
vations for this work since 1879, while Mr. Spreadborough has been 
similarly engaged since 1889, under Mr. Macoun’s supervision. Their 
journeys have extended to various parts of this wide area, from New- 
foundland and Labrador to British Columbia and Vancouver Island. 
The unpublished notes of many other observers have also been utilized, 
as well as the literature of the subject. For Alaska, Greenland, Labrador, 
and Arctic Canada the ‘Catalogue’ is based almost entirely upon pre- 
viously published observations, and even for Southern Canada, the pub- 
lished contributions of Downs, Chamberlain, McIlwraith, Dionne, Wintle, 
Seton-Thompson, Fannin, and others are freely cited. There are thus 
brought together under each species the principal known facts of its 
distribution, with usually a paragraph headed ‘ Breeding Notes,’ with a 
list of the specimens in the Ottawa Museum, collected by the Survey. 
The ‘Catalogue,’ containing, as it does, such a large amount of pre- 
viously unpublished matter, combined with a summary of the more 
important previously published records, forms a compendium of orni- 
thological information for the northern half of North America of great 
permanent interest and value. It is proposed to complete Part II the 
coming winter; and the author invites ornithologists who may receive 
Part I, to send him any additional facts on the birds contained therein 
with a view to their publication as a supplement to Part II.—J. A. A. 
Proceedings of the Delaware Valley Ornithological Club.! — Besides 
the minutes of the meetings, which contain many records of interesting 
captures and notes of field work, are two papers published in full. These 
are: (1) ‘Migration Data on City Hall Tower,’ Philadelphia, by William 
L. Baily, which concludes with a tabular list of 56 species of birds that 
were killed by striking the lighted tower from August 27, 1897, to Octo- 
ber 31, 1899. The number of individuals was 527, of which 452 were 
killed from August 23 to October 31, 1899. (2) ‘The Summer Birds of the 
higher parts of Sullivan and Wyoming Counties, Pa., by Witmer Stone. 
This isa briefly annotated list of 98 species. Mr. Stone states: ‘‘The boreal 
element in the avifauna of Pennsylvania has been steadily decreasing fora 
number of years past as the primitive hemlock and spruce forest disappears 
before the advance of the lumberman.... The cutting of the timberand the 
fires which so frequently follow totally change the aspect of the country 
and completely exterminate many boreal plants, while the altered con- 
ditions admit of the introduction of a more southern fauna, as evidenced 
1 Abstract of the Proceedings of the Delaware Valley Ornithological Club 
of Philadelphia. No. III. For the years 1898 and 1899. Published by the 
Club. 1900. 8vo., pp. 28. 
