The micro-organisms of the soil

by Edward J. Russell; Rothamsted Experimental Station

[7] Christensen, H. R., Centralblatt. f. Bakt., 1915, Abt. II., Bd. 43, p. 1.

[8] Christensen, H. R., Centralblatt. f. Bakt., 1907, Abt. II., Bd. 17, pp. 109, 161.

[9] Christensen, H. R., and Larsen, O. H., Centralblatt. f. Bakt., 1911, Abt. II., Bd. 29, p. 347.

[10] Conn, H. J., Centralblatt. f. Bakt., 1910, Abt. II., Bd. 28, p. 422.

[11] Conn, H. J., Centralblatt. f. Bakt., 1914, Abt. II., Bd. 42, p. 510.

[12] Conn, H. J., Journ. Bact., 1916, vol. i., p. 187.

[13] Conn, H. J., Journ. Bact., 1917, vol. ii., p. 137.

[14] Conn, H. J., Journ. Bact., 1917, vol. ii., p. 35.

[15] Cramer, E., Arch. f. Hyg., 1893, Bd. 16, p. 151.

[16] Cutler, W., Crump, L. M., and Sandon, H., Phil. Trans. Roy. Soc., 1923, Series B, vol. ccxi., p. 317.