Discovery reports (1962) Discovery reports discoveryreports31inst Year: 1962 ACCUMULATION OF CORPORA UP TO ATTAINMENT OF PHYSICAL MATURITY 391 At the overlap there are 31 physically mature females with 14 corpora or less and 23 immature females with 15 corpora or more. Considering these 54 individuals as a normal frequency distribution with a mean value corresponding to the average number of corpora at the threshold of physical maturity, the O 70 z APPROACHING MATURITY HTm 10 IS 20 25 NUMBER OF CORPORA 40 Text-fig. 25. Smoothed curve showing increase in body length with increasing corpora
Discovery reports (1962) Discovery reports discoveryreports31inst Year: 1962 ACCUMULATION OF CORPORA UP TO ATTAINMENT OF PHYSICAL MATURITY 391 At the overlap there are 31 physically mature females with 14 corpora or less and 23 immature females with 15 corpora or more. Considering these 54 individuals as a normal frequency distribution with a mean value corresponding to the average number of corpora at the threshold of physical maturity, the O 70 z APPROACHING MATURITY HTm 10 IS 20 25 NUMBER OF CORPORA 40 Text-fig. 25. Smoothed curve showing increase in body length with increasing corpora number, together with frequency distributions of corpora numbers at progressive stages of epiphysial fusion. IOO >• o z Ul z> 50 O ui a. u. PHYSICALLY IMMATURE PHYSICALLY MATURE 10 15 20 25 30 35 NUMBER OF CORPORA 50 Text-fig. 26. Smoothed frequency distributions of corpora numbers in physically immature and physically mature females. mean is 14-0 with a standard deviation of 3-94. This is slightly lower than the value at the intersection point (14-3) and is influenced by the effect of mortality on the populations from which the sample is taken. The effect of mortality would be to steepen the right-hand part and to decrease the slope of the left-hand part (as in Text-fig. 27), so that the intersection point is a slightly better indication of the mean number of corpora on the attainment of physical maturity. A further confirmation of the close-
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