470 THE ZOOLOGIST. 



kept a daily record of all the examples that were brought into 

 Aberdeen Market from May 7th, 1892, to July 5th, 1895, " and 

 within that period 2865 females stood against only 123 males." 



The illustrations are not numerous, but very effective, espe- 

 cially those depicting Scottish scenery. 



Animal Studies : a Text-book of Elementary Zoology for use in 

 High Schools and Colleges. By David Starr Jordan, 

 Vernon Lyman Kellogg, and Harold Heath. D. Apple- 

 ton & Co. 



This small volume takes a rapid survey of animal life under 

 the different subject-matters of the morphologist, the physiolo- 

 gist, and the ecologist, and it contains chapters on those various 

 questions which have been prompted during the last fifty years 

 by an ever-increasing evolutionary conception of zoology. With 

 the ordinary descriptions of the principal features of animal 

 existence, the ground traversed has been already somewhat amply 

 surveyed ; the originality consists in placing in an elementary 

 book, discussions on subjects which have a far-reaching philo- 

 sophical import. Thus the contrast between the apparent and 

 actual death of a species is very suggestive, and likely to stimu- 

 late the ideas of a pupil on this subject. Protective resemblance 

 and mimicry are of course to the front, but the case is not 

 strengthened by the reproduction of an old but erroneous illus- 

 tration. The Kallima, or leaf-butterfly, is again figured resting 

 with its head uppermost, whereas it is now generally known to 

 rest in a different position, head downwards, "like a dead leaf 

 hanging by its stalk." Instinct and reason are discussed on 

 somewhat generally accepted but antique lines, though the 

 student may perhaps gather that these two attributes can be 

 little more definitely separated, than can primitive forms of 

 animals and plants, as the authors have ably demonstrated at 

 the commencement of the volume. 



Birds' Eggs of the British Isles. Collated by Arthur G. Butler, 

 Ph.D., &c. Illustrated by F. W. Frohawk, M.B.O.U. 

 Brumby & Clarke, Lim. 

 We are given the following particulars as to the genesis of 



this publication. After the production of ' British Birds, with 



