Impotence and Sterility

Whilst the greatest effort has been made to ensure the quality of this text, due to the historical nature of this content, in some rare cases there may be minor issues with legibility. Cases occasionally occur in which a differential diagnosis is impossible until the age of puberty, when certain sexual attributes - menstruation, the growth of beard, changing voice, etc., as the case may be - decide the question of sex. In very rare instances the sex cannot be decided during life.