158 BOTANICAL GAZETTE [AUGUST 
(p. 412) is a stage of the apple scab fungus, yet these fungi could scarcely be 
confounded by one who had seen them. Under the heading “Peach leaf 
blotch (Gloeosporium cydoniae Mont.),” this disease is said to cause spots on 
the “living leaves of the peach (Cydonia vulgaris).” Sphaeropsis malorum 
is described only as a leaf spot disease of the apple, although it has been longest 
and best known as the cause of the black rot of the fruit, and later as the 
cause of a serious bark canker of apple trees. 
The new journal Phytopathology is to be issued for the present as a bi- 
monthly publication of the American Phytopathological Society. The aim, 
as set forth in the editorial announcement, is “to provide a place for the 
publication of phytopathological papers which would otherwise be lost or 
scattered in various places.” While much of its space will be occupied by 
papers read before the society, it is the policy of the editors to make 
the journal more broadly representative and to open its pages to contri- 
butions of value from any source. It is of octavo size, containing at present 
about 35 pages of text and a number of plates in each issue. The halftone 
plates are of unusually good quality. The first issue is fittingly introduced 
by an excellent halftone portrait of DeBary, with a brief sketch of his 
life and of the influence of his great personality on the advancement of plant 
pathology. 
Heretofore the chief interest in plant pathology in the United States has 
been on its economic side, and this side has been highly developed as a result 
of the facilities for investigation, and for the ready means for publication of 
results having an economic bearing, offered by the experiment stations. As a 
result of the emphasis on the economic point of view, little attention has been 
given to the more fundamental problems relating to the subject. Such 
phases as the physiological relations between the host and parasite, the changes 
in metabolism brought about by the parasites, and the enzymatic activities 
of parasites, have remained almost uninvestigated. A journal like the present 
one, devoted entirely to the interests of plant pathology and not restricted to 
e purely economic phases of the subject, will undoubtedly do much to 
stimulate research in these deeper problems of plant pathology.—H. Has- 
SELBRING. 
Fossil plants 
The second volume of SEwarn’s Fossil plants’ has remained too long 
unnoticed by this journal. The first volume appeared in 1898, and the general 
purpose and method of the work were stated in the review published at that 
time? The thirteen years that have elapsed have been memorable ones in 
the history of paleobotany, so that if this second volume had appeared as 
Ee ialewe ls = C., Fossil plants; a text-book for students of botany and geo'ogy. 
Vol. II. pp. oi. figs. 265. ee sine The University Press; New York: 
G. FP. Pehiaie's oiee 1910. $5 
7 Rev. in Bor. GAZETTE Pag 1898. 
