Note 7 — 11 THE INDIAN IN AGRICULTURE
Reading edition
N. I. Vavilov, “Studies on the Origin of Cultivated Plants,” Bulletin of Applied Botany, vol 16, no. 2, pp. 218-219 (1926). S. M. Bukasov and others, “The Cultivated Plants of Mexico, Guatemala, and Colombia,” 47th Supplement to the Bulletin of Applied Botany, 1930. Other papers listed in Henry J. Bruman, “The Russian Investigations on Plant Genetics in Latin America and Their Bearing on Culture History,” Handbook of Latin American Studies (1937), 287.