Note 61 — Chapter VI · LETTERS TO DARWIN AND OTHERS. 1860-1868. (continued 2)
Reading edition
Scientific Papers of Asa Gray, selected by C. S. Sargent, vol. ii. p. 321; also in American Journal Science and Arts, 2 ser., xli. p. 1 (1866).
Reading edition
Scientific Papers of Asa Gray, selected by C. S. Sargent, vol. ii. p. 321; also in American Journal Science and Arts, 2 ser., xli. p. 1 (1866).