OCR Rendition - approximateMAN, 190t. PLATE L.
STANDARD SCHEME OF DESCENT
PARENTAL GRADES 11 t A r R S T U
NUMBER IN EACH 22 67 161 250 250 161 67 22
1000 COUPLES
BOTH PARENTS OF
SAME GRADE AND'
ONE ADULT MALE
CHILD TO EACH
REGRESSION OF
PARENTAL TO
FILIAL CENTRES
22 CHILDREN OF tZ
67 „ or
161 „ of •6
250 „ or 7
250 „ or R 4 25 68 86 511 ;14 2
161 „ OF S I I
• I I
i
1 6 25 52 50: 122 5
I I
I
I
67 „ or T
22 „ of U
SUMS 20 162 ®~ 2 0
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