[175] J.S.C.I. 1890, 28.
[176] J.S.C.I. 1892, 422.
[177] Vide Note on the Estimation of Butyric Acid, W. H. Willcox, J. Chem. Soc., Nov. 21, 1895.
[178] Vide J. Chem. Soc. (Trans.), lix., 94, App. II.
[179] J.S.C.I. 1893, 424; vide supra, p. [254].
[180] 2000 c.c. gave only about the same amount of acids as 1000 c.c. fermentations. For percentages of acids, see table, p. [281].
[181] J.S.C.I. 1893, 423.
[182] Schutzenberger, “Fermentation,” 1876, p. 227.
[183] Woodhead, “Bacteria and their Products,” p. 125.
[184] Die Stickstoffkonservirung im Stalldünger, Jour. f. Landwirthsh., xlii. p. 69.