78 THE AMERICAN NATURALIST. [Vor. XXXIV. 
Professor V. M. Spalding's paper on the white pine (Pinus 
strobus), revised and enlarged by Professor Fernow, is published as 
Bulletin 22 of the United States Department of Agriculture. 
A revision of the North American species of the genus Frullania, 
by Professor A. W. Evans, is published in Vol. X of the Trans- 
actions of the Connecticut Academy of Arts and Sciences. 
Professor Macbride has done a useful piece of work in allowing his 
Myxomycetes of Eastern Jowa to expand into the handsome volume, 
The North American Slime-Moulds, just issued by The Macmillan 
Company — a volume which should be in every botanical library. 
Students of kephir and similar ferments will find interest in a 
paper by H. Marshall Ward and J. Reynolds Green, on a sugar 
bacterium, reprinted from Vol. LXIV of | the Proceedings of the 
Royal Society. 
The October number of the Queensland Agricultural Journal con- 
tains a report on the timber trees of a district of North Queensland, 
by J. F. Bailey, which includes an annotated list of 111 species, sev- 
eral of which are figured. 
* Forestry Notes for Iowa" is the title of a paper by Professor 
Macbride separately printed in advance from the tenth Report of 
the Iowa Geological Survey. 
A preliminary catalogue of plants poisonous to stock, by V. K. 
Chesnut, is reprinted from the annual Æeport of the National Bureau 
of Animal Industry, for 1898. 
The Bulletin of the Torrey Botanical Club for November contains 
papers on Lycopodium complanatum and L. chamecyparissus, by 
F. E. Lloyd; the dichotomous Panicums, by G. V. Nash; Delphi- 
nium carolinianum and related species, by P. A. Rydberg; New and 
interesting plants from western North America, by A. A. Heller; A 
new genus of powdery mildews — Erysiphopsis, by B. D. Halsted; 
and The habitats of the Pelleas, by E. J. Hill. 
Part I of the second volume of the Contributions from the botani- 
cal laboratory of the University of Pennsylvania contains nine 
papers, presenting the results of laboratory investigation in various 
fields of botany. 
In 1879 Professor Beal buried seeds of twenty-two species of 
plants in the soil, in inverted bottles, and at the end of each period 
