760 Recently published Ornithological Works. 
86. W. Evans on the Mealy Redpolls. 
[Notes on the recent Immigration of Mealy Redpolls (Acantliis 
linaria), including the Form known as Holboll’s Redpoll. By W. Evans. 
Proc. Roy. Phys. Soc. Edinb. xviii. pp. 196-203, and reprint.] 
The author here records former immigrations of the Mealy 
Redpoll, and gives fall details of that of 1910, perhaps 
the greatest ever known. He doubts whether Holboll’s 
Redpoll is worthy of even subspecific rank, as the measure¬ 
ments of bill and wing vary to a great extent, and those who 
uphold it as a subspecies rely on its larger size, and 
especially on the size of the bill. Many measurements are 
given, which would shew that a large number of the birds 
captured in Scotland would come under the form holboelli , if 
it is accepted. One of the largest examples, taken near 
Dunbar, w r as so named by Dr. Harfert. 
87. Faxon on Breivster’s Warbler. 
[Brewster’s Warbler. By Walter Faxon. Mem. Mus. Comp. Zool. 
vol. xii. No. 2. Cambridge, U.S.A., 1911.] 
This instructive memoir discusses, at full length, the 
singular case of Brewster's Warbler—a most distinct bird 
in general appearance, but allied in some mysterious way 
to two other species, Helminthophila pinus and H. chrysoptera. 
After relating his personal experiences with this curious 
creature, Mr. Faxon gives us an account of the very con¬ 
flicting opinions on it that have been held by the American 
naturalists. Some say that it is a good species, others that 
it is a hybrid. Mr. Faxon “sees no objection" to the 
hypothesis that it is a hybrid between the two species above 
named. 
88. Gyldenstolpe on Birds from Russian Turkestan. 
[Short Notes on a Collection of Birds from Russian Turkestan. By 
Nils Gyldenstolpe. Arch. f. Zool., Band 7, No. 14. Upsala, 1911.] 
The author describes and gives notes on a small collection 
of birds from the Semirjetschensk district of Russian 
Turkestan. The species are mostly typical Central Asiatic, 
but there are also some widely spread Palsearctic species and 
a few migratory forms from the south. There are 69 forms 
