It is pleasing that the welcome given to the first edition of this monograph should so soon have necessitated a second. It remains unchanged apart from minor textual corrections, and the addition of an index.
In the meantime the plea for further research made in chapter 6 has not gone unheeded; the International Children's Centre, Paris, is now supporting such research both in England and France. The Centre has also done much to further a wider understanding of the effects of maternal deprivation by the international seminars which it has sponsored. It is to be hoped that other bodies interested in research will follow its example.
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