272 Recent Literature. [July 
In Europe the trend of the /ard and migration is discontinuous, east 
and west; and therefore the older, stronger-fying birds ascend to higher 
levels to see over both land and sea, whilst the young birds keep lower 
down, but by mutual powers of vision are still guided by the higher- 
flying old birds above. Reaching land, the young birds sink exhausted it 
may be, but the ‘first wave’ of old birds passes on upon their further jour- 
ney. More could be urged on this aspect of the question, but we refrain 
in fear of occupying too much valuable space. One more remark: Fogs 
and mists and haze and darkness, blot out the landmarks by sea from even 
these high-flying pioneers, and as described by Herr Gitke, ‘‘in the clap 
of a hand, in a second of time” — or words to that effect, or nearly — the 
island of Heligoland, off the entrance to the Elbe, is crowded by birds, 
in fens of thousands, when the fog lies heavy around. 
We have only taken 13 pages of the article by Mr. Cooke as text for our 
reply, but there are many valuable and interesting points brought out and 
referred fo in subsequent pages, worthy of equal attention. If our notes 
can be of use, we are happy to contribute even the smallest mite. If it 
should be considered desirable, further remarks upon pp. 14 e¢ seg. might 
follow, but what kas already been said, we believe, will be suggestive of 
what méght be said again, and reasons and arguments adduced for the 
formation of what we in Europe call ‘rushes’ and you in America, the 
“arrival of the bulk” —from your own showing.—J. A. Harvigr-Brown, 
M. B. O. U., C. M. A. O. U. 
Publications Received.—Allen, J. A. (1) On Cyclorhis viridis (Vieill.) 
and its near Allies, with Remarks on other Species of the Genus Cyclorhis. 
(Bull. Am. Mus. Nat. Hist., Vol. II, No. 3, 123-135, June 17, 1889.) 
(2) Descriptions of New Species of South American Birds with Remarks 
on various other little known species (Ibid., pp. 127-151 June 28.) 
Brown, Nathan C. Supplementary Notes on Birds of Portland and 
Vicinity. (Proc. Portland Soc. Nat. Hist.) 
Conklin, W. A. Report of the Central Park Menagerie. Svo. pp. 43, 
1889. 
Gurney, John Henry. (1) On an apparently undescribed species of Owl 
from Anjouan Island, proposed to be called Scops capnodes. (Ibis, Jan., 
1889, pp. 104-107.) (2) [On Buteo unicolor d’Orb.] (Ibid., pp. 134, 135)- 
Harvie-Brown, J. A., and J. Cordeaux, R. M. Barrrington, A. G. More, 
and W. Eagle Clark. Report on the Migration of Birds in the Spring 
and Autumn of 1887. Ninth Report, Vol. II, No. 4, 1889. 8vo. pp. 175, 
with map. 
Ingalls, Charles E. Birds of Templeton [Mass.] and Adjoining Towns. 
(The Gardner, Mass., News, June 1, 1889.) 
Maynard, C. J. (1) The eggs of North American Birds, 8vo., Pts. 1 
and 2. (2) Contributions to Science, Vol. I, No. 1, April, 1889. 
Merriam, C. Hart. Report of the Ornithologist and Mammalogist, C. 
Hart Merriam, M. D., for the year 1888. (Ann. Rep. of the Dept. Chee 
for the year 1888, pp. 477-536, 1889. ) 
