This large volume deals minutely with most of the aspects of reproduction. Starting with reproduction in the simplest forms of plant life, a detailed discussion takes the reader through all the mechanisms involved in reproduction by various animals which investigators have so far studied. A special section deals with the higher mammals, including man. Special chapters deal with ovulation, menstruation, the physiologic and pathologic deviations during pregnancy, parturition, lactation and the menopause. The sexual activity of the male and female are presented with scientific frankness, as are sexual perversions and abnormal sexual practices. The last two hundred pages deal with the growth of cells and organs, tissue culture, embryonic development, regeneration in plants and animals, and the healing of wounds. This review suffices to give the interested reader a general notion of the scope of the volume. Twenty-eight contributors, carefully selected from the laboratory and the clinic, compiled the volume.