Interpretations of the Curve of Normal Growth.

2 W. J. Crozier, J. Gen. Physiol., 10: 53, 1926. 3 C. S. Minot, "Age, Growth and Death," G. P. Putnam 's Sons, New York, 1908. 4 C. M. Child, " Senescence and Rejuvenescence," University of Chicago Press, 1915. 5 Sewall Wright, J. Amer. Statis. Assoc., 21: 493, 1926. was found by Davidson6 to give a good fit to growth in weight W of dairy cattle. Equation (3) was applied by Weymouth7 with excellent success to growth in length L of the razor clam. The derivation of equation (2) is as follows: W = P where W equals body weight at any time t, and P equals the growth power of the body cells. Since growth power is assumed to fall off at a