nucleus with a heated needle, or extracts it with a fine pipette. Finally it is possible with a ligature or sectioning to amputate the portion of the fertilized egg which includes this nucleus.' (Jean ho stand, New Proceedings in Animal Generation, in Science and Life, January, 1954) Feminine cooperation becomes reduced to sheltering the food reserves of the ovule and lending a pository for the foetus.

Tomorrow, doubtless, humanity will use to its advantage these strange formulas. Parents will no longer be content with the gifts of chance. Man will renounce the illusion of immortality for descendance. 'We shall necessarily leave to our children a portion of ourselves, but when in their turn they pass on to the new being a portion of themselves, it will be impossible to foresee what part of that part will be ours; it can vary from all to nothing. When our immediate descendants have passed, we do not know what we shall become; we are not even sured of a minimum of permanence. (Thoughts of a Biologist, pp. 8-9) One day perhaps it will be the privilege of a genius to be drawn out into many examples. 'That day,' the biologist has said, 'humanity will be the mistress of its destiny.

Sexual equality is today a justified moral claim. Tomorrow it may lie at the basis of new modes of procreation which will permit the biologist to mold individuals. (Translated from the French by M. p. 23)

Arcadie, Mai 1954

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