CHAPTER XXXVI 
EUGENICS AND EUTHENICS: 
PAUL POPENOE AND ROSWELL H. JOHNSON 
Emphasis has been given, in several of the foregoing chapters, to 
the desirability of inheriting a good constitution and a high degree 
of vigor and disease-resistance. It has been asserted that no measures 
of hygiene and sanitation can take the place of such inheritance. It 
is now desirable to ascertain the limits within which good inheritance 
is effective, and this may be conveniently done by a study of the lives 
of a group of people who inherited exceptionally strong physical con- 
stitutions. 
The people referred to are taken from a collection of histories of 
long life made by the Genealogical Record Office of Washington. 
One hundred individuals were picked out at random, each of whom had 
died at the age of ninety or more, and with the record of each indi- 
vidual were placed those of all his brothers and sisters. Any family 
was rejected in which there was a record of wholly accidental death 
(e.g., families of which a member had been killed in the Civil War). 
The too families, or more correctly fraternities or sibships, were 
classified by the number of children per fraternity, as follows: 
Number Number of Total Number 
° Children per of Children 
Fraternities Fraternity in Group 
I 2 2 
Ir 3 33 
8 4 32 
17 5 85 
13 6 78 
14 7 98 
9 8 72 
It 9 99 
10 Io 100 
3 It 33 
2 I2 24 
C 13 13 
100 669 
«From P. Popenoe and R. H. Johnson, Applied Eugenics (copyright 1918). 
Used by special permission of the publishers, The Macmillan Company. 
484 
