372 BOTANICAL GAZETTE [MAY 
a method of putting up for distribution pure cultures of Pseudomonas radicicola, 
own in nitrogen-free media and dried on cotton immersed in the culture. These 
cultures are sent out by the U. S. Department of Agriculture together with pack- 
ages of nutrient salts to multiply the organism. e mass-culture thus obtained 
is used to inoculate the seed or the soil. Numerous reports from farmers of all 
states indicate that this method will prove successful and practicable——H. Has- 
SELBRING. 
Tue Orrice of Experiment Stations of the U. S. Department of Agriculture 
has recently issued a valuable syllabus of the diseases of the Irish potato in the 
United States by Stewart and Eustace of the New York (Geneva) Experiment 
Station. This is the second of a new series of publications designed primarily 
to assist farmers’ institute lecturers in the presentation of various important sub- 
jects to farmers. Each lecture is accompanied by a set of lantern slides, there 
being in this case forty-seven slides in the set. Arrangements have been made 
to loan these slides to lecturers, or they may be purchased through the Department 
of Agriculture at a very moderate cost. Both the syllabus and the accompanying 
set of slides should prove of great value to teachers of plant pathology in presenting 
the diseases of the potato. A brief bibliography is appended to the syllabus, 
which contains references to the most important American literature of this sub- 
ject.—E. Mrap WILLcox. 
AN UNDATED EDITION of ANDREWS’s Botany all the year round has been issued, 
which differs from the preceding one’ only in being bound into one volume with 
a flora by W. Nevin Geppes.° This flora brings together compact and simple 
descriptions of the more common flowering plants, not only native and naturalized, 
but also cultivated, and includes about 1,250 species. The sequence of families 
is an interesting reminiscence of the old time classification, and it is quite a penne 
0 see gymnosperms once more as a subclass of “Exogens or Dicotyledons.” 
The nomenclature, too, is frankly “conservative and eclectic;” but the book does 
as well as any other to enable a student to find names for plants, which seems to 
be regarded as a very valuable exercise.—J. M. C. 
THE FOURTH PART of SARGENT’s Trees and shrubs? contains plates and 
descriptive text of species of Acer (13), Parthenocissus (3), Malus, Oroxy lum, 
Phellodendron (3), Arctostaphylos (2), Dracaena, and Pinus (2). There are 
4 Stewart, F. C. and Eustace, H. J., Syllabus of illustrated sgn on Lage 
diseases and their treatment. Office of Exp. Stat. U. S. Dept. Agr. Farm — 
Lecture 2:1-30. 1904. 
5 See Bot. GAZETTE 35: 439. 1903. 
6 GeppEs, W. Nevtn, A brief flora of the eastern United States. Ne 
Cincinnati, Chicago: American Book Company, with no date. 
7 SARGENT, C. S., Trees and shrubs. Illustrations of new or little known ligneous 
St — chiefly from material at the Arnold Arboretum of Harvard Unt iversity- 
IV. pp. 151-217. a 76-100. Boston and New York: Houghton, Miffin & 
Cages 1905. 
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