Ovarian Physiology

IN one of his historic contributions to renal physiology, Homer Smith concludes that the kidney is "the organ par excellence of evolution." Such a claim could, of course, be made for any of the body's vital systems. Reproduction holds a special place, being concerned with the species rather than the individual, and with relations between individuals in which some specialized adaptation to the environment is involved. A new and important periodical, the Bibliography of Reproduction, listing almost 10,000 titles a year, represents a research effort by which the importance of the subject can be measured. A good proportion of . . .