Bibliographies of Botany. 421 



MacDougal, D. T. 



Titles of literature concerning the fixation of free nitrogen by plants. 



(Minnesota Botanical Studies. Minneapolis, Minn. [Editor, Conway 

 MacMillan, State Botanist]. [Series Ij (18941898), p. 186221. 

 Issued Sept. 27., 1894. [See note under Tilden, Josephine E.]) 

 Not annotated. Incomplete, but useful. A supplementary list 

 was projected; see Schneider, Albert. 

 Rossi, Gino de'. 



Ueber die Mikroorganismen, welche die Wurzelknb'llchen der Leguminosen 

 erzeugen. 



(In Centralbl. f. Bakteriol. u. Parasitenk. II. Abth. v. XVIII (1907), 

 p. 289314, 481489.) 

 Literatur: p. 483488 (165 entries). 

 Russell, H. L. 



[Review of the literature of 1892 on the assimilation of free nitrogen by 

 the action of bacteria.] 



(In Bot. Gaz. XIX (1894), p. 284293.) 

 Schneider, Albert. 



The phenomena of symbiosis. 



(Minnesota Botanical Studies. Minneapolis, Minn. [Editor, Conway 

 MacMillan, State Botanist]. [Series I] (18941898), p. 923948. 

 Issued May 31., 1897. [See note under Tilden, Josephine E.]) 

 Pag. 945 948: "Appendix. Titles of literature concerning 

 the fixation of free nitrogen of plants ... a continuation of those 

 given by Mac Don gal . . ." 



Outline of the history of leguminous root-nodules and Rhizobia with 



titles of literature concerning the fixation of free nitrogen by plants. III. 



(Minnesota Botanical Studies. Minneapolis, Minn. [Editor, Conway 



MacMillan, State Botanist]. Third Series (1903 ), p. 133139. 



Issued July 3., 1903. [See note under Tilden, Josephine E.]) 



Formally, there are no parts I und II corresponding to 



this III. But this and the foregoing paper serve as supplements 



to MacDougal's compilation (q. v.). Together, the three papers 



contain some 780 titles. 



Appendix 2. 



Plankton. 



Apstein, Carl. 



Das Siisswasserplankton, Methode und Resultate der quantitative!! Unter- 

 suchung. Kiel u. Leipzig, Lipsius & Tischer, 1896. 



200 p. and 5 tables. 



"Es folgen zum Schluss . . . ein Litteraturverzeichniss mit 110 



Nummern . . ." 

 Dalla Torre, K. W. von. 



Bericht iiber die Literatur der biologischen Erforschung des Siisswassers 

 in den Jahren 1901 und 1902. 



(In Forschungsberichte d. Biol. Station Plon XII (1905), p. 354418). 



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