NOTICES OF NEW BOOKS. 75 



With regard to the localities and arrival of the various 

 species, it is to be noted that the Grasshopper-Warbler and 

 Land-Bail are noted as having arrived only on the western 

 half of the south coast, while the Eeed-Warbler, Bed-backed 

 Shrike, Wryneck and Turtle-Dove, came in on the south-east 

 coast, from Suffolk to Hampshire. Many species were observed 

 to begin to depart very early in the autumn, but yet there were 

 great migrations during November, even more than during the 

 previous month, the main migrations having apparently been 

 delayed till the middle of the latter. It is gratifying to find, in 

 this connection, that special mention is made of Mr. B. B. 

 Biviere's observations in the ' Zoologist ' of 1913, which are 

 stated to have " added considerably to our knowledge of the 

 coasting character of some of these autumn movements." The 

 Beport is of course indispensable to all who are studying 

 migration. 



The House-Fly. By C. Gordon Hewitt, D.Sc, F.B.S.C. 



Cambridge Zoological Series. Cambridge : University 



Press. 1914. 

 It is probable that no more valuable and important 

 monograph of any insect has been published than this, in 

 which Dr. Hewitt, formerly Lecturer on Economic Zoology in 

 the University of Manchester, and now Dominion Entomologist 

 of Canada, discusses from every point of view the most familiar 

 of all insects, if not of all living things. The whole history of 

 the Fly in all its stages is exhaustively discussed, the morpho- 

 logy being thoroughly worked out, while equal attention is 

 given to its reproductive, feeding, and other habits. Natural 

 enemies and parasites are also dealt with, as are other species 

 of Flies frequenting houses, such as the Lesser House-Fly 

 (Fannia canicularis) and the biting Stable-Fly (Stomoxys calci- 

 trans). These subjects occupy the first four sections of the 

 work, while the last two are occupied with the extremely 

 important subject of the relation of House-Flies to disease, now 

 so widely recognized, and the various methods of control which 

 are being attempted. The work is most fully and beautifully 

 illustrated by both coloured and uncoloured figures, most of 

 them the work of the author. 



