. Civic biology; textbook of problems, local and national, that can be solved only by civic coöperation. Biology. 94 CIVIC BIOLOGY tubers from weak hills of the same variety. Little, however, has been done by way of recording the yields of single hills. Grubb gives 16 tubers, weigliing 8 pounds, as the ideal liill in field culture. Perry Nathan Pickett, aged twelve years, m connection with his industrial project work in Salem, Ore- gon, in 1914, produced a rec- ord hill of Burbank potatoes, containino-13 laro-e and 2 small tubers, weighing 1(3 pounds. A record hill from Lexington, Oregon, 3-ie
. Civic biology; textbook of problems, local and national, that can be solved only by civic coöperation. Biology. 94 CIVIC BIOLOGY tubers from weak hills of the same variety. Little, however, has been done by way of recording the yields of single hills. Grubb gives 16 tubers, weigliing 8 pounds, as the ideal liill in field culture. Perry Nathan Pickett, aged twelve years, m connection with his industrial project work in Salem, Ore- gon, in 1914, produced a rec- ord hill of Burbank potatoes, containino-13 laro-e and 2 small tubers, weighing 1(3 pounds. A record hill from Lexington, Oregon, 3-ielded 24 pounds, and Carl Gabrielson, aged eleven, Puyallup, Washing- ton, has reported a volunteer hill in his school garden that dug 103 potatoes, rang- hiQf from 12 ounces to the size of a hen's egg and weighing 40 pounds 12 ounces. If we know liow to raise one hill best, we may extend this knowledge to any number of hills. Hence, for an ele- mentary standard unit the single plant will be a more usable one than the plot or acre. Any boy can find a place to raise one or ten hills of potatoes; he may try a different experiment on each hill, and thus learn more from a single hill than he might from an acre. The same is true of a single plant of wheat, corn, tomato, cabbage, lettuce, strawberry, blackberry, raspberry, grape, peach, apple, pear, rose, lily, or anything Fig. 47. Growth race between potatoes Potatoes weighed aucl g. At end of fifty-eight days tlie roots had grown 8640 ft. and 155 ft. respectively. Photo- grapli hy Frances W. Tnfts. 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 Hodge, Clifton Fremont, 1859-; Dawson, Jean, 1873-. Boston, Ginn
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