287 
and injuries of the roots, VI. diseases and injuries of the flowers and 
flower buds, VII. diseases and injuries of the berries. Under each of 
these groups are as many lettered or numbered divisions and subdivi¬ 
sions as may be necessary to include all of the diseases, one para¬ 
graph being given to each, with a numeral cross-reference to Part n, 
where a scientific description of the parasite may be found. When 
possible, classification is carried still farther, e. g ., under VII. diseases 
and injuries of the berries, the following subdivisions are given: 
A. Rot of tlie berries. 
a-e .—Five paragraphs devoted to as many diseases. 
B. Spots which hinder development, and sometimes completely destroy the berry, 
caused by fungi, which also occur on the leaves. 
a-g .—Seven paragraphs. 
C. Spots of varied color which do not noticeably affect the growth and ripening of 
the berries. 
a-d .—Four paragraphs. 
D. Injuries by insects. 
a-d .—Four paragraphs. 
E. Dwarfing, protrusion of seeds, etc. 
In Part n, under the appropriate classes, groups, orders, and fam¬ 
ilies, there is a concise description of 1,332 injurious species, 423 of 
which are parasitic plants, mostly fungi, the descriptions of which are 
drawn principally from Saccardo, Winter, and Schrbter. These 1,332 
species are numbered serially, corresponding to the cross-references in 
Part i. A concise account is also given of the classes, orders, families, 
and genera to which these species belong, so that this part of the book 
is really a very serviceable compendium of parasitic plants and animals. 
On the whole, this is the best book extant for the rapid determina¬ 
tion of unknown plant diseases, and will therefore be of much use to 
students. The book would have had a wider circle of readers and 
have been still more useful if the author had included shade trees 
and all cultivated plants. Notes on treatment are given wherever 
anything definite has been ascertained, but this is the weakest part. 
The book is provided with a table of contents, an index to names, and 
a special index to technical terms. —Erwin F. Smith. 
Rust in wheat.— Report of the proceedings of the conference, con¬ 
vened by invitation of the Minister for Agriculture (the Hon. Sidney 
Smith), and held in Sydney [New South Wales] on June 2, 3, 4, 5, 
and 8, 1891. Sydney, Charles Potter, government printer, 1891. 
Folio, pp. 56, pi. 1. 
The subject of rust in wheat has of late years excited the liveliest 
interest in the Australian colonies. According to a statement of the 
Minister for Agriculture, the total loss from the disease amounts to 
about £2,000,000 annually, and naturally a desire is felt to find some 
way of combating it. During the year 1890 many experiments were 
carried on. Details of these are given in the report of the conference 
convened at Sydney in June, 1891, at which delegates from the four 
