Frequency-Distribution of Volume of Islands of Langerhans in the Pancreas of Man, Monkey and Dog

Abstract
Methods of handling non-random samples have been applied to obtain frequency-distribution diagrams from measurements of volume of 100 islands of Langerhans in the pancreas of a man, monkey, and dog. The skewness is so great as to suggest the use of the logarithm of volume instead as variate, in which case an equality of range is observed. Similar features give indirect evidence of the existence of a stage in life after which no more islands are formed.