Full text: papers communicated to the first International Eugenics Congress held at the University of London, July 24th to 30th, 1912

D. C. Gini.Sociology and Eugenics.3*7 
especially those closely connected with the incomplete development of the 
child (13). It is therefore natural that among those born in winter, at least 
in countries where they are not properly sheltered from the inclemency of the 
season, not only should there be a high mortality, but that recovery in the case 
of those who manage to survive should not be so complete as it would have 
been had they been born in other seasons. 
The seasons favourable to the life of the newly-born during their earlier stages 
shew analogous differences to those found for the unfavourable seasons. The 
favourable influence of spring seems permanent, that of autumn counter-selective. 
Does the influence of the season of conception come into play here ? It seems 
to me rather rash to assert that it does. Or does the influence of the different 
seasons in which natural feeding usually ceases for those born in spring, as 
compared with those born in autumn, come into play ? 
It is known that the change in diet which takes place when natural feeding 
ceases is a matter of great importance as regards the health of the child. If, 
then, those born in autumn should cease to be naturally fed in summer (the 
dangerous season for maladies of the digestive system), usually or more 
frequently than those born in i pring, we might find in this a state of affairs 
dangerous to their health; but I am not in a position to decide whether this 
really is so, and to what extent it may affect the vitality of the organism in 
later life. 
The data for Cagliari, both as regards quantity and quality, are much less 
important than those for Rome. They were taken from the registers of births 
extracted by the employees of the Movimento Dello Stato Civile under the 
direction of Cav. Medda Secchi, secretary to the Stato Civile. 
In the register of births for the town of Cagliari, the date of death is entered 
opposite that of the birth, no matter whether the person concerned died in the 
town or outside. In many cases, however, this circumstance had to be 
disregarded. The number of dead of different ages resulting from the figures 
is in fact incompatible with that shown by the mortality statistics. 
However, since the lacunae are certainly independent of the month of 
birth, it will not be uninteresting to shew the result obtained. 
Those born during the years 1902-11, who died before March 7th, 1912, 
were taken into consideration. The dead were divided into eight age groups, 
according to whether they died before the 6th of the third month after birth, 
during the year following this date, or during the 2nd, 3rd, 4th, 5th, 6th or 7th 
years after. For instance those born in December, 1902, dead before 7th 
March, 1912, were classified according to whether they died before the 6th of 
March, 1903, or between the 7th of March, 1903, and the 6th of March, 1904, 
or between the 7th March, 1904, and the 6th of March, 1905, or between 7th 
March, 1905, and the 6th of March, 1906,.......................................................... 
from 7th of March 1911, to 6th of March, 1912. Obviously the more recent
        

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