183. Dr. Reid has discussed
the role of disease and alcohol on the modern evolution of man more
fully than any other writer.
[64] See, for example, John West's _History of Tasmania_, Vol. II,
Launceston, Tasmania, 1852.
[65] See Hollingworth, H. L., _Vocational Psychology_, p. 170, New York,
1916.
[66] Net increase here refers only to the first year of life, and was
computed by deducting the deaths under one year, in a ward, from the
number of births in the same ward for the same year. For details of this
study of the Pittsburgh vital statistics, see the _Journal of Heredity_,
Vol. VIII, pp. 178-183 (April, 1917).
[67] Quoted from Newsholme and Stevenson, _The Decline of Human
Fertility_, London, 1906.
[68] Heron, David, _On the Relation of Fertility in Man to Social
Status_, London, 1906. The account is quoted from Schuster, Edgar,
_Eugenics_, pp. 220-221, London, 1913.
[69] _Ztschft. f. Sozialwissenschaft,_ VII (1904), pp. 1 ff.
[70] Two of the best known of these tribes are the "Jukes" and "Nams."
"An analysis of the figures of the Jukes in regard to the birth-rate
shows that of a total of 403 married Juke women, 330 reproduced one or
more children and 73 were barren. The average fecundity, counting those
who are barren, is 3.
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