. College botany; structure, physiology and economics of plants. Botany. 252 COLLEGE BOTANY at a very early date, but received a great impetus from the Aryan migrations from Asia about 2500 or 2000 years (Fig. 116). Ancient Agriculture in America.—Agriculture iu the west- ern hemisphere is not as old as. in the eastern hemisphere, but. Fig. 116.—Map showing the origin of some of our most important grain crops. was practiced by aborigines long before the coming of the white man. It reached its highest development in Mexico, Central America, Peru and adjacent regions. We are indebted to Ame
. College botany; structure, physiology and economics of plants. Botany. 252 COLLEGE BOTANY at a very early date, but received a great impetus from the Aryan migrations from Asia about 2500 or 2000 years (Fig. 116). Ancient Agriculture in America.—Agriculture iu the west- ern hemisphere is not as old as. in the eastern hemisphere, but. Fig. 116.—Map showing the origin of some of our most important grain crops. was practiced by aborigines long before the coming of the white man. It reached its highest development in Mexico, Central America, Peru and adjacent regions. We are indebted to America for many of our most important agricultural plants, such as com, potatoes, tomatoes, tobacco, cacao, sweet potatoes and manv Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Cook, Melville Thurston, 1869-1952. Philadelphia and London, J. B. Lippincott Company
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectbotany, bookyear1920
