110 THE JOURNAL OF BOTANY 
history of smuts should exe Pe clue to the practical agriculturist 
in his treatment of the dise 
o treatise of plant aad is complete without suggested 
Hthsiion. Keeping the plants in health is of the first importance, 
and attention to sanitation is insisted os as also the choice of seeds 
and seedlings free from disease. Much also can be done by the selec- 
ion of imm . Avery careful account is given of the 
various fungicides, and the most advantageous methods of applying 
In reference to the danger of aoe in cee wee with 
spraying, ee author tells us, for comfort, that it has been- 
estimated that a person would re ies a eat eight to oe barrels of 
apples rental with arsenic spray before he would suffer any injury 
from the poison. 
The book has been issued under the auspices of the University 
of Minnesota, to which “is due the credit for making financially 
possible the collection of material and illustrations and ‘the publica- 
tion of this work.” The Board of Regents have not stinted either 
the author or the bikes the illustrations are abundant, and 
extremely goo e can but envy a country and a University 
where such liberal things are devised and carried - completion. 
A. Lorrain Smiru. 
Suggestions ge Beginning Survey Work on sees To be obtained 
from the Editor of The New —— University Callege, 
Lenton, W. C. Price 3d., post free 
AnyTuine comes as a relief to the dull monotony and hide- 
bound Stadion of existing floras. The ecological method, as 
exhibited here, is practically on the same lines as the four parts of 
Messrs. R. & W. G. Smith’s Botanical Survey of Scotland. Itisa 
welcome songlibc teal pion to sharp criticism no doubt, but on 
the whole we have nothing but praise for it. The wealth of 
the means of collecting the spear are anos and n 
A “ vegetation-survey ”’ system: a record of ‘the inter- 
relation of : species to one one as well as their environment— 
12 
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a 
n con- 
the mere comaied unit or * iivesbiincha or larger 
method of describing living facts. The fir, or oak wood, with 
a dominating mass of bluebells (Seitla), if da soil permits of it, 
r the moorland, with its rampant ericaceous growth and sub- 
