BOUREKEN F LITERATURE. 
MINOR NOTICES. 
Mr. Epo CLAASSEN of Cleveland has published in the fifth annual report 
of. the Ohio Academy of Science a list of the Uredinee of Cuyahoga and 
other counties of northern Ohio, together with the names of their hosts. The 
list includes forty-three species. Also, a second list of the Erysiphez of the 
same region, including eighteen species.— C. R. B. 
A PAPER by Professor Conway MacMillan in the Journal of School Geog- 
raphy for April contains some interesting ‘‘Notes for teachers on the geo- 
graphical distribution of plants,” in which the chief principles of ecologic 
plant geography are sketched, and the suggestion made that such a study of 
plants has more value in secondary schools than the ordinary herbalism.— 
Dr. ALBERT SCHNEIDER has published in the /Journal of Pharmacology 
for June an account of the histology of the leaves of six species of Phzlo- 
carpus which furnish the various sorts of jaborandi, and also of Swartzia 
decipiens which appears as a substitute. Each species is illustrated by 
three figures showing the cross section and the upper and lower epidermis.— 
A synopsis of the mosses collected by Dr. Julius R6ll in the United States 
in 1888 has been published by him’ and distributed by him as a separate. A 
running account of his trip is followed by a list of species collected. The 
erratic multiplication of species by Kindberg after competent bryologists 
have once worked over the material seems to meet ROll’s approval, as he 
gives these names preference.—C.R. B 
THE SEMI-ANNUAL REPORT of Schimmel & Co., dated April 1897, con- 
tains a revised list of essential oils, giving their botanical origin, the part or 
products of the plant from which the oil is obtained, the yield, and the physi- 
cal constants and principal chemical constituents of each oil. Their first list 
was published in October 1893. e present one contains a considerable 
number of oils recently introduced into commerce and the industries. The 
report is also accompanied by a map showing the regions of Japan producing 
peppermint oil and camphor.—C. R. B 
* Abhandl. d. Naturw. Vereins zu Bremen 14 : 183-216. 1897. 
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