The micro-organisms of the soil

by Edward J. Russell; Rothamsted Experimental Station

[8] Delf, E. M., New Phytologist, 1915, vol. xiv., p. 63.

[9] Dobell, C. C., Arch. f. Protisenk., 1911, vol. xxiii., p. 269.

[10] * Goodey, T., Roy. Soc. Proc. B., 1916, vol. lxxxix., p. 279.

[11] Goodey, T., Roy. Soc. Proc. B., 1913, vol. lxxxvi, p. 427.

[12] Hartmann, M., and Nägler, K., Sitz-Ber. Gesellsch. Naturf. Freunde, 1908, Berlin, No. 4.

[13] Koch, G. P., Journ. Agric. Res., 1916, vol. li., p. 477.

[14] Kofoid, C. A., Bull. Illinois State Lab. Nat. Hist., 1903 and 1908.

[15] * Kopeloff, N., Lint, H. C., and Coleman, D. A., Centrlb. f. Bakt. Abt. II., 1916, vol. xlvi., p. 28.

[16] Kopeloff, N., Lint, H. C., and Coleman, D. A., Centrlb. f. Bakt. Abt. II., 1916, vol. xlv., p. 230.

[17] Lipman, J. G., Blair, A. W., Owen, L. L., and McLean, H. C., N.J. Agric. Exp. Sta. 1912, Bull., No. 248.