VIII-IX] 



Introduction 



\\\ 



Thus, for /t= -4, k = '65670, d/N = -005,1850. Accordingly f.,r 



h = -32546, k = '65670, 



\\. find djN = '006,8642. 



We must now repeat this work for r = '85. 



'?} d/N= 004,6616; '^ d/N = '002,9477. 



K = 'OJ K = '!) 



For h = -3, k = -65670, d/tf = 003,6898, 



'*} d/N= 002,9950; ' '*! d/N= -001,8483. 



K = "b j Ic = *7J 



Thus, for h = -4, k = "65670, d/tf* 032,3448. Accordingly for 



7i = -32546, k = '65670, 



we find d/JIT = '003,3474. 



Hence we have for the given values of h and k : 



r = _-80, r = -'85, 



d/N = 006,8642, d/N = 003,3474, 

 or, for r=-'8421, -d/N= 003,9031. 



Accordingly individuals with femur and humerus within the limits given would 

 form about 0'4 per cent, of the male French population. 



Precisely the same value (003,903) arises from the use of the hyperbolic 

 formula (a) of p. xviii. 



Illustration (vii). Intelligence and Enlarged Glands. (Boys.) . 



Intelligence 



J(l - A ) = |ff- '478,191, . i(l - t) = ffi - '263,328. 

 Hence by Table XXIX of Part I, using linear interpolation, 



h = 05469, & = '63312. 

 Further: d/N = ^= '130,8562. 



From these arguments we are to find r. Clearly h lies between and *1 and 

 k between '6 and '7. The value of d for these values of h and k might lie in the 

 tables for r = '00, / = O5 or r = "10. The latter is very improbable because the point 



B. n. i 



