Book ews and Meviews 
REPORT ON THE IMMIGRATIONS OF BRITISH 
SUMMER RESIDENTS IN THE SPRING OF 
1908, ETc. Edited by W. R. OGItLviE- 
Grant. Bulletin. British Ornithologists’ 
Club, Vol. XXIV. 235 pages, 29 maps. 
Witherby & Co., 326 High Holborn, 
London. 
This, the Fourth Annual Report of the 
Committee on bird migration appointed 
by the British Ornithologists’ Club, will 
be of interest to American readers, both 
for what it contains as well as for the 
methods employed in observing and record- 
ing. 
One is at once impressed with the lim- 
ited opportunities of the British orni- 
thologist, when compared with those en- 
joyed by students of bird migration in 
this country. Not alone is the area over 
which a bird’s journey may be followed 
smaller, but the migration itself evidently 
does not begin to attain the proportions 
‘which it reaches with us. Thus, only 
thirty-four species appear on the regular 
schedule of migration distributed by the 
Committee. Nevertheless, the special 
problems presented by an insular station 
lend to the study of migratory phenomena 
in Great Britain an exceptional interest. “In 
the spring of 1908, the main bulk of the 
birds had not appeared on the roth of 
April. On the 20th, however, the immi- 
gration commenced in earnest; and on the 
26th birds began to pour in, the greatest 
numbers arriving on the 29th, when no less 
than twenty-four out of the thirty-four 
specially recorded species arrived in con- 
siderable numbers. During the following 
ten days the immigration continued, and 
culminated on the 9th of May in another 
great influx, including nineteen different 
species. After that date the migration 
began to wane, only three species being 
recorded on the rath, and a fortnight later 
it ceased altogether. It will thus be seen 
that the main tide of immigration in 1908 
was of shorter duration than usual, taking 
place almost entirely between the 26th of 
April and the 12th of May’”—dates, it may 
be added, which approximately bound the 
period of most active migration near New 
York City, some 600 miles south of south- 
ern England; a demonstration of the im- 
portance of isotherms over degrees of 
latitude in affecting the distribution of life. 
18 IMIS (Ce 
Witp LIFE ON THE RockiEs. By ENos 
A. Mitts. Houghton, Miffin & Co., 
Boston and New York. 1909. 12mo., 
vili-262 pages, 25 half-tones from photo- 
graphs. Price $1.75. 
Enos Mills is the John Muir of the Rock- 
ies, and every one who knows him will 
learn with pleasure that he has placed 
in book form some of the results of his 
long and loving association with nature 
in the Rockies; and to those who do not 
know him we commend these essays as 
the records of a keen and sympathetic 
observer, who has established close rela- 
tions between himself and his environ- 
ment, the trees and flowers, and wild ~ 
creatures that inhabit it. 
The keynote of Mr. Mills’ book is en- 
thusiasm and sincerity. He is more than 
a nature lover, he is a nature worshiper, 
and he pays here his tribute to the cliffs and 
peaks, the trees and animals, with which 
he has lived on terms of exceptional 
intimacy.—F. M. C. 
SumMMER Birps oF SHAW’S GARDEN. By 
Orto WipMANN. Pages 41-80. Colored 
frontispiece. Twentieth Annual Report 
Missouri Botanical Garden. St. Louis. 
1909. 
Parks are not only often capital places 
for the study of birds, but they are the only 
places available to many residents of 
cities. We trust, therefore, that this pam- 
phlet is available to all visitors to the area 
of which it treats, for it should do much to 
arouse and direct their interest in birds. 
It gives us excellent biographical notes on 
the 40 species of birds which regularly 
frequent Shaw’s Gardens in summer and 
presumably breed there, and also treats 
of six others of less frequent occurrence.— 
Be NE Ce 
(Sr) 
