Jan. 28, i9i8 Nitrogen-Assimilating Bacteria 229 



(19) Greaves, J. E. 



1916. THE INFLUENCE OP SALTS ON THE BACTERIAL ACTIVITIES OP THE SOIL. In 



Soil Science, v. 2, no. 5, p. 443-480, 4 fig. 



(20) Hanzawa, J. 



I914. EINIGE beobachtungen UBER STICKSTOFF-BINDUNG durch azotobac- 

 TER IN STICKSTOFFARMEN UND IN STICKSTOFFREICHEN SUBSTRATEN. 



In Centbl. Bakt. [etc.], Abt. 2, Bd. 41, No. 18/23, p. 573-576. 



(21) HellriEgel, H., and Wilfarth, H. 



1888. UNTERSUCHUNGEN UBER die STICKSTOFFNAHRUNG DER GRAMINEEN UND 



LEGUMiNOSEN. In Ztschr. Ver. Riibenzuckerindus., Beilageheft, 

 Nov., 234 p., 6 pi. 



(22) Herke, S. 



i913. contributions on nitrogen fixation and nutrition op bacillus 

 radicicola and on bacterial tests op nitragin and azotogen. 

 (Abstract.) In Exp. Sta. Rec, v. 29, no. 8, p. 733. (Original article 

 in Kiserlet. Kozlem., v. 16, no. 3, p. 311-322, 1913. Not seen.) 



(23) Hills, T. L. 



the INFLUENCE OF NITRATES ON THE GROWTH OP AZOTOBACTER. Un- 

 published. Offered for publication in the Ann. Rept. of the Pa. Agr. 

 Exp. Sta. 



(24) HiLTNER, L. 



1900. UEBER DIE URSACHEN, WELCHE DIE GROSSE, ZAHL, STELLUNG UND 



WIRKUNG DER WURZELKNOLLCHEN DER LEGUMINOSEN BEDINGEN. In 



Arb. K. Gsndhtsamt., Biol. Abt., Bd. i. Heft 2, p. 177-222, pi. 3. 



(25) Immendorfp, H. 



1892. BEITRAGE ZUR LOSUNG DER " STICKSTOFFRAGE. " In Landw. Jahxb. 



Bd. 21, p. 281-339. 



(26) JosT, Ludwig. 



1907. LECTURES ON PLANT PHYSIOLOGY. Translated by R. J. H. Gibson. 

 464 p., 172 fig. Oxford. Bibliography at the end of each lecture. 



(27) Kayser, E. 



I910. INFLUENCE DES NITRATES SUR LES FERMENTS ALCOOLIQUES. /nCompt. 



Rend. Acad. Sci. [Paris], t. 151, no. 19, p. 816-817. 



(28) Kossowicz, Alexander. 



I914. UBER DAS VERHALTEN VON HEFEX UND SCHIMMELPILZEN ZU NITRATEN. 



In Biochem. Ztschr., Bd. 67, Heft 4/5, p. 400-419. 



(29) IvAURENT, Emile. 



1891. RECHERCHEs SUR LES nodosite;3 radicales DES l:6gumineuses. In 

 Ann. Inst. Pasteur, annee 5, p. 105-139, 3 fig. 



(30) Lewis, L. L., and Nicholson, J. F. 



1905. soil INOCULATION. TUBERCLE-FORMING BACTERIA OP LEGUMES. Okla. 



Agr. Exp. Sta. Bui. 68, 30 p., 8 fig. 



(31) Marchal, Emile 



1901. INFLUENCE DES SELS MIN^RAUX NUTRITIFS SUR LA PRODUCTION DES 



NODOSIT^S CHEZ LE POis. In Coinpt. Rend. Acad. Sci. [Paris], 

 t. 133, no. 24, p. 1032-1033. 



(32) Maz6, p. 



1897. FIXATION DE L 'azote LIBRE PAR LE BACILLE DES NODOSITIES DES 



l6guminEuses. In Ann. Inst. Pasteur, annee 11, no. i, p. 44-54. 



{zz) 



1898. LES MICROBES DES nodosit6s DES l6guminEuses. In Ann. Inst. 



Pasteur, ann. 12, no. i, p. 1-25, i fig. 

 (34) Meyer, Arthur. 



1912. DIE ZELLE DER BAKTERiEN. 285 p., 34 fig., I col.pl. Jena. Literatur, 

 p. 267-282. 



