the only sign of | | | | | lead poisoning | 6 | 29 | 21 | 8 | | | | | |Of these, eight died 6. Husband alone | | | | | in first year, exposed to lead | ? | 32 | 12 | 20 | four in second, | | | | | five in third. -------------------------------------------------------------------- FIG. 29 Tabulation of eighty-one cases of lead poisoning recorded by Constantin Paul (from Adami). [Illustration: Fig. 30 Photograph of young rabbits from the same litter, the smaller one stunted by lead-poisoning of its father (Courtesy of Professor L. J. Cole).] =The Expectant Mother Should Have Rest.--=The mere matter of rest on the part of the pregnant mother is, judging from the work of Pinard, a Frenchman, and his pupils, an important one. In a number of detailed investigations they have shown that rest on the part of the working mother during the last three months before the child is born results in the production of markedly larger and more robust children than those born of mothers equally healthy but who have not had such rest. Moreover the danger of premature birth is considerably lessened. =Too Short Intervals Between Children.--=Too short an interval between childbirths would also seem to be an infringement on the rights of the child as well as of the mother. Thus Doctor R. J. Ewart ("The Influence of Parental Age on Offspring," _Eugenic Review_, October, 1911) finds that children born at intervals of less than two years after the birth of the previous child still show at the age of six a notable deficiency in height, weight and intelligence, when compared with the children born after a longer interval, or even with first-born children. =Our Duty to Safeguard Motherhood.--=Doubtless the unventilated factory and tenement also do their share, even though we can give no exact quantitative measure of it. Obviously, it becomes a civic duty to protect as much as possible all members of our social system from such injurious factors as have just been discussed. It is particularly necessary to safeguard mothers before confinement, especially working mothers.