| “a 
, 
LECTURES ON THE EVOLUTION OF PLANTS. 981 
a conditions . . . the — fact remains that the English 
rry is not a success in Am It may produce a ap an ood 
Gerais ies whe young, but is atadien sure to fail later.” The reason 
for this failure is that the English varieties are constantly siadlad 
mildew, in = of remedial mulching with manure, stones, tin 
cans, old boots, or other strange materi 
The bush- fruits are treated under three headings : the brambles 
sebdthsing raspberries, blackberries, and dewberries ; the groselles— 
a word coined by the author ‘ from the old French ‘word groiselle or 
groisselle’’—to include both currants and nae Moe in the original 
sense of the word; and miscellaneous types. ast contains a 
shore account of a few species of minor Seta such as the 
huckleberry, Sieehaeiy barberry, and others. 
In the two more important gam are chapters dealing 
insect and other pests, and also ) 
group. The latter is a useful Wuirnatis synopsis of the sedis 
and marked natural varieties of the genera Rubus and Ribes respec- 
tively which are native to North America or there cultivated. The 
figures, of which there are one hundred and thirteen, form a useful 
addition to the subject-matter, and there is an exhaustive index. 
Ake Gok A. B. Rennie. 
Lectures on the pte of Plants. By Dovetas Hoventon Camp- 
BELL, Ph.D. O, pp. vili, 319, with 60 figures in the text. 
New York: The Macmillan Co. 1899. Price 4s. 6d. 
In this volume the author has endeavoured to present in as un- 
technical a manner as seemed feasible the more striking facts bearing 
upon the os of plant forms, in the hope of interesting not onl 
such botanists as have not concerned themselves specially with this 
phase of ay palehen, but also zoologists, and those general readers 
who are interested in biological problem ms. The substance of the 
chapters was re weer presented i in the form of a course of lectures 
at Stanford University. They make a readable little book for the 
botanical student who has been through an elementary course, and 
will help such a one to correlate the life- histatins of the various 
types which he has examined. As was to be expected, the Antho- 
cerotee occupy an important aga in a ie phylogeny of the higher 
plants, but the student who has not had the bene fit of Professor 
C 
to this group of Hepatics. In this and also in other points the 
writer takes too much ~ granted. For instance, we find ‘‘lepto- 
We question, moreover, the advisability of putting before either the 
ent or general reader the wonderful genealogical trees ee ror 
he supposed relationships of the subdivisions of Monocotyledons 
mene ein OS and of these two great groups to sais other. 
They may embody certain probabilities, but they certainly assume 
much ceded for which there is very little Wate 
