Abstract
The methods of studying sterility that have proved to be most satisfactory are reviewed. A summary of findings in 165 clinical cases is included. The study serves to emphasize 4 facts. The causes of a barren marriage are about evenly distributed between husband and wife. Thorough examination of the seminal fluid is necessary in order to evaluate an individual''s index of fertility. The adm. of sex hormones produces a depletion of spermatozoa. The value of gonadotrophins in the treatment of sperm deficiency is still uncertain.

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