The micro-organisms of the soil

by Edward J. Russell; Rothamsted Experimental Station

[17] Doryland, C. J. T., N. Dakota Agr. Exp. Sta., 1916, Bulletin 116.

[18] Fabricius, O., and Feilitzen, H., Centr. f. Bakt., 1905, Abt. II., Bd. 14, p. 161.

[19] Fisher, R. A., Thornton, H. G., and Mackenzie, W. A., Ann. Appl. Biol., 1922, vol. ix., p. 325.

[20] Fred, E. B., and Hart, E. B., Wisconsin Agr. Exp. Sta. Research, 1915, Bulletin 35.

[21] Gainey, P. L., Journ. Agric. Research, 1918, vol. xiv., p. 265.

[22] Golding, J., Journ. Agric. Sci., 1905, vol. i., p. 59.

[23] Greaves, J. E., Soil Sci., 1916, vol. ii., p. 443.

[24] Greaves, J. E., Journ. Agric. Res., 1916, vol. vi, p. 389.

[25] Greaves, J. E., Soil Sci., 1920, vol. x., p. 77.

[26] Greaves, J. E., and Lund, Y., Soil Sci., 1921, vol. xii., p. 163.