760 Recentlij pitblislted OrnitJioloyical Works. 



8G. W. Evans on the Mealy Redpolls. 



[Notes on the recent Immigration of Mealy Redpolls {Acanthis 

 linaria), including the Form known as IlolboU's Redpoll. By W. Evans, 

 Proc. Roy. Phys. Soc. Ediuh. xviii. pp. 196-203, and reprint.] 



The author here records former imiiiigrations of the Mealy 

 Redpoll, and gives fall details of that of 1910, perhaps 

 tlie greatest ever known. He doubts whether Ilolholl's 

 Redpoll is worthy of even subspecific rank, as tlie measure- 

 ments of bill and wing vary to a great extent, and those who 

 uj)hol(l it as a subspecies rely on its larger size, and 

 especially on the size of the bill. ]\Iauy 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, was so named by Dr. Hartert. 



87. Faxon on Brewster's Warbler. 



[Brewster's Warbler. By AValter 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, Helm'mthopJula pinus and H. cJtrysoptera. 

 After relating his personal experiences Avith this curious 

 creature, Mr. Faxon gives lis an account of the very con- 

 flicting opinions on it that have been lield by the American 

 naturalists. Some say that it is a good species, others that 

 it is a hybrid. INIr. Faxon ''sees no objection ^^ to the 

 hypothesis that it is a hybrid between the two species abo\e 

 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 

 oE 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 



