Oct. 1903] Notes from Mycological Literature 
207 
Outline of the History of Leguminous Root Nodules 
and Rhizobia with Titles of Literature concerning the Fixation 
of Free Nitrogen by Plants III, is the title of a short article 
by Albert Schneider in the Minnesota Botanical Studies, Third 
Series, Part II, July 3, 1903 (pp. 133-9). The first installment 
of titles (by Dr. D. T. McDougal) was published in this Series 
in 1894, the second (by Prof. Albert Schneider) in 1897. These 
and the present list include 780 titles. In a history to be pre¬ 
pared the following outline will be followed: First Period: 
Initial Study of Leguminous Root Tubercles — from Clos 
(1848) to Lawes and Gilbert (i860) ; Second Period: Collateral 
Investigation which led to the Discovery of the True Nature of 
Root Tubercles — from Lawes and Gilbert (i860) to Frank 
(1879) » Third Period: The Scientific Investigation of Legumi¬ 
nous Root Tubercles and Rhizobia — from Frank (1879) to 
Schneider (1893). 
Lichens of the Northern Boundary is the Title of the 
Vllth paper of Contributions to a Knowledge of the Lichens of 
Minnesota, by Bruce Fink, published in Part II (pp. 167-244), 
Minnesota Botanical Studies, July 3, 1903. A long list of Lichen 
Formations is discussed, followed by an enumeration of 310 
species and varieties with dates and habitats. 
Prof. Albert Schneider Publishes his Third Contri¬ 
bution to the Biology of Rhizobia under the title of Notes on 
the Winter and Spring Condition of Rhizobia and Root Tubercles, 
Botanical Gazette, 36:64-7, July 1903. He says that most of the 
Rhizobia are killed during the winter months; the tubercles of 
perennial herbaceous legumes attain their full growth during the 
early part of the first season, mostly die and decay at the close 
of the second season. 
Flies as Carriers of Bacteria, work done by two students 
in the Eastern Illinois State Normal School, is published and 
illustrated in School Science, 3:16-20, April 1903; the same 
is reproduced in Jour. Appl. Micr. 6:2402-4, July 1903. 
“The work is of value, not only on account of its scientific in¬ 
terest, but also because it points the way to a new field of effort 
opened to secondary students.” 
A Gall upon a Mushroom, caused by dipterous larvae of 
Mycetophilidae, found at Ithaca, N. Y., Sept. 12, 1892 — the 
plants being two specimens of Omphalia campanella — illustrated 
by several figures, and described in detail, by Charles Thom, is 
published in the Botanical Gazette, 36:223-5, September 1903. 
The Boston Mycological Club has issued interesting Bul¬ 
letins from time to time. Nos. 15 and 16, (8 pp.), June 1901 
are devoted to the genus Coprinus, author Edwin A. Daniels. 
Descriptions are given of all the species so far reported for the 
