348 Journal of Agricultural Research voi. xvi, no. 12 



(9) Conn., H. Joel. 



1917. SOIL FLORA STUDIES. III. Spore-forming bacteria in soil. N. Y. State 

 Agr. Exp. Sta. Tech. Bui. 58, 16 p., 4 fig. 



(10) 



1917. SOIL FLORA STUDIES. IV. Non-spore-forming bacteria in soil. N. Y. 

 State Agr. Exp. Sta. Tech. Bui. 59, 18 p. 



(11) 



1917. SOIL FLORA STUDIES. V. Actinomycetes in soil. N. Y. State Agr. Exp. 



Sta. Tech. Bui. 60, 25 p. 



(12)- 



1918. THE MICROSCOPIC STUDY OF BACTERIA AND FUNGI IN SOIL. N. Y. State 



Agr. Exp. Sta. Tech. Bui. 64, 20 p. 



(13) Edson, H. a., and Carpenter, C. W. 



1912. TECHNICAL description OF CERTAIN BACTERIA OCCURRING IN MAPLE SAP. 



The green fluorescent bacteria occurring in maple sap. In Vt. Agr. 

 Exp. Sta. Bui. 167, p. 521-602, pi. 13-16. Bibliography, p. 

 600-602 . 



(14) EisENBERG, James. 



1891. BAKTERIOLOGISCHE DiAGNOSTiK. Aufl. 3, 508 p. Hamburg and Leipzig. 

 Cites (p. 76) Tommasoli. 



(15) EiSENBERG, Philipp. 



1914. UNTERSUCHUNGEN UBER DIE VARIABILITAT DER BAKTERIEN. V. Mittei- 



lung. Ueber Mutationen in der Gruppe des Bact. fluorescens, Bact. 

 pneumoniae, bei Sarcina tetragena und bei Bact. typhi. In Centbl. 

 Bakt. [etc.], Abt. i, Orig., Bd. 73, Heft 7, p. 466-488. Literatur, p. 

 487-488. 



(16) Fl'ugge, C, ed. 



1886. DIE mikroorganismen . . . Aufl. 2, 692 p., illus. Leipzig. . Literatur, 

 p. 1-44. 



(17) Frankxand, Grace C, and Frankl.\nd, Percy F. 



1889. ueber ei.vige typische mikroorganismen im wasser und im boden 



In Ztschr. Hyg., Bd. 6, p. 373-400, pi. 2-4. 



(18) Franzen, Hartwig, and Lohmann, E. 



1909. quantitative bestimmungen zur saltpetervergarung. In Ztschr. 

 Physiol. Chem., Bd. 63, Heft i, p. 52-102. 



(19) Gainey, p. L. 



i917. the significance of nitrification as a factor in soil fertility. 

 In Soil Sci., V. 3, no. 5, p. 399-416. Literature cited, p. 414-416. 



(20) Gessard, Carle. 



1882. DE LAPYOCYANINE ET DE son MICROBE, COLORATIONS QUI EN DEPENDENT 

 DANS LES LIQUIDES ORGANIQUES (PUS ET s6rOSITE;s, SUEUR, LIQUIDES 



DE CULTURE), APPLICATIONS CLiNiQUES. 68 p. Paris. 



(21) 



1890. NOUVELLES RECHERCHES SUR LE MICROBE PYOCYANIQUE. In Ann. Inst. 



Pasteur, ann. 4, no. 2, p. 88-102. 



(22) 



1892. suR LE FONCTioN FLUORESCiGENE DES MICROBES. In Ann. Inst. Pas- 

 teur, ann. 6, no. 12, p. 801-823. 



(23) ITERSON, G. van, jr. 



1902. ACCUMULATION EXPERIMENTS WITH DENITRIFYING BACTERIA. In K. 



Akad. Wetensch. Amsterdam Proc. Sect. Sci., v. 5, p. 148-162, i pi. 

 1902. Abstract in Centbl. Bakt. [etc.], Abt. 2, Bd. 9, Heft 20, p. 

 772-774. 1902. Original not seen. 



