79 
REVIEWS AND BOOK NOTICES. 
Junior Botany. By F. Cavers, D.Sc., F.L.S. W. B. Clive, 1915, pp. 
xii. + 288, 2s. 6d. This work is intended to meet the requirements of 
students taking the junior local examinations of Oxford and Cambridge. 
The first sixty-six pages, by means of aseries of well selected experiments, 
deal with physics and chemistry, which are essential to a proper under- 
standing of the problems presented in a study of plant life. The rest of 
the book is devoted to the study of plant forms and functions on the 
thoroughly practical lines already familiar to our readers in the author’s 
deservedly popular books on plant biology and the life-histories of plants. 
There are 140 clear and helpful illustrations. 
All About Leaves. By F. G. Heath. Williams & Norgate, pp. ix. 
+ 228, 4s. 6d.net. The author of this work is well-known for his delight- 
ful descriptions of our wild plants, e:g., his ‘Woodland Trees,’ ‘ Fern 
World,’ etc. Unfortunately he did not live to see his latest work through 
the press. The introductory chapters deal with the beauty, mystery and 
fabric of the leaf, and in the remainder of the volume we have descriptions, 
in the popular and attractive language characteristic of the author’s 
writings, of the leaves of thirty-seven shrubs and trees and twenty-five 
herbaceous species. These are well illustrated by eighty photographs from 
nature, and four in colours from the excellent drawings by Miss M. 
Schroedter, are of the horse-chestnut, common ash, hazel and larch. 
Determinative Mineralogy with Tables. By J. Volney Lewis. 2nd 
edition. New York: J. Wiley & Sons; London: Chapman & Hall, 
155 pages, 6s. 6d. net. The first edition of this work was noticed in The 
Naturalist for 1913, page 435. The present edition differs from it ‘in 
the full restatement with each section of the tables of the classificatory 
characters and tests leading up to it. This adds much to the convenience 
of the tables for reference, since the complete description of a mineral, 
both physical and chemical, will now be found in one place. The supple- 
mentary tables at the end have also been adapted to a wider use by the 
inclusion of specific gravity and composition, in addition to luster, cry- 
stallization, and hardness ; so that they may be used for the rapid deter- 
mination of minerals by means of their physical properties, even in the 
absence of crystals.’ 
Typical Flies: A Photographic Atlas of Diptera, including Aphaniptera. 
By E. K. Pearce. Cambridge University Press, xii. + 47 pages. Price 
5s. net. This work consists of a series of plates reproduced from photo- 
graphs of the more typical, or common British Diptera, of which about 
130 species are illustrated, in many instances the sexes being shown 
separately. It is issued as a cheap book for beginners, to whom it will 
be helpful. The photographic illustrations,render with fidelity an im- 
portant dipterous character—the venation of the wings and the shape 
and general appearance of the insects. Beneath each figure is given the 
size, and a short account of the habits and distribution of the species. 
In many cases it would have been useful it the colouration of the forms had 
been briefly referred to. In the preface the author describes the best 
methods and most suitable times and places for collecting. Brauer’s 
classification of the families of Diptera is given, and there is an index 
to the species illustrated. 
Market Gardening. By F. L. Yeaw. Chapman & Hall, 1915, pp. vi. 
+ 102, 3s. 6d. net. At the present time, when so much attention is 
directed to increasing the productivity of the land, the possibilities of - 
market gardening deserve special notice. The author of this small volume 
has had a wide experience and is thoroughly conversant with all the im- 
portant aspects of his subject. No words are wasted on non-essentials 
and he has succeeded in giving a large amount of information in very 
1916 Feb. 1. 
