Explanatory Note to Tables I to IX. 



These Tables practically explain themselves. Table I shows the total fre- 

 quency for each cranial character observed, the inmates of asylums being treated 

 as a whole. As an illustration, 301 males had a head height of 136 mm., the total 

 number of male inmates being the sum of the frequencies found for each mm., 

 namely 4436. Tables II to VII are tabulations of the observations with respect 

 to the frequencies of each combination of two characters, i.e. they are correlation 

 tables. For instance, take the two characters head length and head breadth 

 (males) in Table II. The "Totals " columns give the frequencies for the various 

 sizes of head length and head breadth, just as Table I does, while the figures in 

 the body of the table give the frequencies of the various sizes of length of head for 

 any particular breadth, and vice versa. For example, there were five males with a 

 head length of 174 mm., the sizes and frequencies of head breadth for this group 

 of 5 being 130 mm., one person; 138 mm., two; 141 mm., one ; and 150 mm., 

 one. Where italics occur at the end of the range in these tables, a break in the 

 continuity of the scale is indicated. No persons with intermediate dimensions were 

 observed to occur. Table VIII shows the average value and degree of variability 

 for each of the cranial characters, the whole of the inmates being considered. The 

 degree of variability is expressed by means of the standard deviation which 

 measures the " degree of scatter" of the sizes, the values given being the various 

 values of a- found. The dimensions of the various characters are expressed in 

 millimetres. Table IX shows the pigmentation distribution, both of hair and 

 eyes, of 4235 males and 3708 females (the total numbers observed for hair and 

 eye colour), and also the corresponding percentages for the various colours 

 observed. The table is similar in type to Tables II- VI I, showing not only the 

 total frequencies for the various hair and eye colours, but also the frequency for 

 each combination. To illustrate again, there were 1372 males out of the total of 

 4235 who had dark hair. Of the 1372 dark haired persons, 346 had light eyes, 

 497 had medium coloured eyes, and 529 had dark eyes, and so on with the others. 

 The results for individual asylums are given in subsequent tables. 



