Note 52 — RECENT LITERATURE.
Reading edition
Blackman, M. W. and Stage, Harry H. Tech. Publ. No. 10, N. Y. State College of Forestry, May, 1918, pp. 16-17.
Reading edition
Blackman, M. W. and Stage, Harry H. Tech. Publ. No. 10, N. Y. State College of Forestry, May, 1918, pp. 16-17.