“…Many workers on growth (Waters, 1909;Henseler, 1914;Eckles & Swett, 1918;Trowbridge, Moulton & Haigh, 1918;Lush, Jones, Dameron & Carpenter, 1930;Espe, Cannon & Hansen, 1932;Hammond, 1932;Schutte, 1935;McMeekan, 1938McMeekan, , 1940McMeekan, , 1941Raath, 1941;Bonsma, F. N. 1944;Wallace, 1948;Starke, 1951;Palsson & Verges, 1952;etc. ) have illustrated and stressed the marked influence which environmental conditions and especially nutrition, have thereon.…”