174 THE AMERICAN NATURALIST.: [Vor. XXXIX. 
book *is not intended for biologists, but rather for those who would 
like a brief introductory outline of this important phase of biological 
theory.” Nevertheless it will doubtless prove a very useful work in 
the hands of beginners in biology and of the “nature-study " teacher, 
and is sure to be attractive to the general reader because of the 
wealth of illustrative material which it contains. This material has 
been selected with great care and forms an integral part of the work. 
It is one of the best of the popular treatises on evolution. 
WE b. 

BOTANY. 
Plant-Breeding.' — This useful and deservedly popular hand- 
book, originally published in 1895, now appears in a third edition, 
revised so as to cover the important period since 1900, when Mendel's 
law was rediscovered. The work meets the needs of a wide circle 
of readers, including the general public particularly interested at the 
present time in the subject of horticulture, the practical plant-breeder, 
and the student. To the student the extensive bibliography appended 
to the book will be especially valuable. 
WEC 
Haberlandt’s Physiological Anatomy of Plants.? 
twenty years since the first edition of this work appeared and despite 
the mass of new material which has accumulated in that time, the 
author is able to adhere to his original plan in the exposition of the 
structures and functions of plant tissues. There is, indeed, not so 
much difference between this third edition and the second published 
in 1896, as there was between the last named and the first imprint of 
1884. Nevertheless there is a considerable amount of new material, 
as is shown by the fact that the number of pages has increased from 
550 to 616, and that the illustrations number 29 more in the new 
edition. 

"Bailey, L. H. Pram- i ind five Lectures upon the Amelioration of 
Domestic Plants. New Yor millan Co., 1904.  16mo, 3d edition. xiii + 
334 pp-, frontispiece and 20 ext 
* Haberlandt, G. Physiologische Pflanzenanatomie. Leipzig. Engelmann, 1904. 
8vo, 3rd dition: xvi-+ 616 pp., 264 figs. in text. 
