Note F — Chapter V · PROTOZOA OF THE SOIL, II.
Reading edition
The proof of the accuracy of this method will be found in the following papers:—
(1) Cutler, D. W. (1920), Journ. Agric. Sci., vol. x., 136-143.
(2) Cutler, D. W., and Crump, L. M. (1920), Ann. App. Biol., vol. vii., 11-24.