5oo Journal of Agricultural Research voi. xii. N0.9 



indicated by the total acidity developed, the ratio of nonvolatile to 

 volatile acids, temperature observations, and bacterial studies. 



From a review of the present status of the question as to whether 

 bacteria or plant cells are mainly responsible for silage fermentation, 

 it is concluded that the data thus far published are inconclusive. 

 Although the results of the present study tend to support the cell- 

 respiration theory, conclusions on this point are withheld. 



LITERATURE CITED 



(i) Babcock, S. M., and Russell, H. L. 



1900. CAUSES OPERATIVE IN THE PRODUCTION OF SILAGE. In Wis. Agr. Exp. 



Sta. i7tli Ann. Rpt., [1899V1900, p. 123-141, fig. 17. 

 (2) 



1901. CAUSES OPERATIVE IN THE FORMATION OF SILAGE- (SECOND PAPER.) 



In Wis. Agr. Exp. Sta. i8th Ann. Rpt., [i90o]/i90i. p. 177-1S4, fig. 44. 



(3) BechdEL, S. I. 



1917. STUDIES IN THE PRESERVATION OF CORN SILAGE. 3° P- Reprint (separate 

 No. y)from Pa. Agr. Exp. Sta. Ann. Rpt. 1915/16. 



(4) Clark, W. M. 



191 7. THE ACID PRODUCTION OF BACILLUS BULGARicus. (Abstract.) In Abs. 

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(5) Dox, A. W., and Neidig, R. E. 



1913. lactic ACID in CORN SILAGE. lowa Agr. Exp. Sta. Research Bui. 10, 



P- 363-37S. 4 fig- 



(6) EcKLES, C. H., OsHEL, O. I., and Magruder, D. M. 



1916. SILAGE investigations: normal temperatures and some factors 

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 Bui. 22, 32, p., 7 fig. 



(7) Hunter, O. W. 



i917. microorganisms and heat production in silage fermentation. 

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 cited, p. 82-83. 



(8) and BushnELL, L. D. 



1916. SOME IMPORTANT FERMENTATIONS IN SILAGE. Kan. Agr. Exp. Sta. 



Tech. Bui. 2, 32 p. Bibliography, p. 32. 



(9) Lamb, A. R. 



1917. THE RELATIVE INFLUENCE OF MICROORGANISMS AND PLANT ENZYMS ON. 



THE FERMENTATION OF CORN SILAGE. In JouT. Agr. Research, v. 8, 

 no. 10, p. 361-380, 13 fig. Literature cited, p. 37S-380. 



(10) Rahn, Otto. 



I910. THE USEFULNESS OF CURVES IN THE INTERPRETATION OF MICROBIAL 



AND BIOCHEMICAL PROCESSES. Mich. Agr. Exp. Sta. Tech. Bui. 

 5, 29 p., 18 fig. 



(11) Rosenthal, Eugen. 



I9IO. UNTERSUCHUNGEN UBER die ANTrPROTEOLYTlSCHE WIRKUNG DES 



BLUTSERUMS. In Folia Serol., Bd. 6, p. 285-300. 



(12) Round, L. A. 



I917. THE BACTERIOLOGY OF SAUERKRAUT, A FURTHER STUDY. (Abstract.) 



In Abs. Bact., v. i, no. i, p. 50. 



(13) Sherman, J. M. 



I916. A CONTRIBUTION TO THE BACTERIOLOGY OF SILAGE. In JoUT. Bact., V. I, 



no. 4, p. 445-452. Bibliography, p. 452. 



