In 1928, the classic book Growth was published. Its authors were W,R. Robbins, S. Brody, A.G. Hogan, C. Jackson, and C.W. Greene.
Of special interest was anatomy professor C.W. Greene's chapter "Some Aspects of Form and Growth." A fascinating picture or graph is found on Page 118:
Your Task: Make up your own experiments and gather your own data to test the validity of this picture.