disease elsewhere, they may be fattened for the butcher. Among the other sources of irritation charged with causing nymphomania are tumors and cancers of the womb, rigid closure of the neck of the womb so that conception can not occur and the frequent services by the male which stimulate the unsatisfied appetite, inflammation, and a purulent discharge from the womb or vagina. _Treatment._--The treatment in each case will vary with the cause and is most satisfactory when that cause is a removable one. Overfeeding on richly nitrogenous feed can be stopped, exercise in the open field given, diseased ovaries may be removed (see "Castration," p. 299), catarrhs of the womb and passages overcome by antiseptic, astringent injections (see "Leucorrhea," p. 224), and tumors of the womb may often be detached and extracted, the mouth of that organ having been first dilated by sponge tents or otherwise. The rubber dilator (impregnator), sometimes helpful in the mare, is rarely available for the cow, owing to the different condition of the mouth of the womb. DIMINUTION OR LOSS OF VENEREAL DESIRE (ANAPHRODISIA). This occurs in either sex from low condition and ill health. Longstanding, chronic diseases of important internal organs, leading to emaciation and weakness, or a prolonged semistarvation in winter may be sufficient cause. It is, however, much more common as the result of degeneration or extensive and destructive disease of the secreting organs (testicles, ovaries) which elaborate the male and female sexual products, respectively. Such diseases are, therefore, a common cause of sterility in both sexes. The old bull, fat and lazy, becomes sluggish and unreliable in serving, and finally gets to be useless for breeding purposes. This is not attributable to his weight and clumsiness alone, but largely to the fatty degeneration of his testicles and their excretory ducts, which prevents the due formation and maturation of the semen. If he has been kept in extra high condition for exhibition in the show ring, this disqualification comes upon him sooner and becomes more irremediable. Similarly the overfed, inactive cow, and above all the show cow, fails to come in heat at the usual times, shows little disposition to take the bull, and fails to conceive when served. Her trouble is the same in kind, namely, fatty degeneration of the ovaries and of their excretory ducts (Fallopian tubes), which prevents the formation or maturation of the ovum or, when it has formed, hinders its passage into the womb. Another common defect in such old, fat cows is a rigid closure of the mouth of the womb, which prevents conception, even if the ovum reaches the interior of that organ and even if the semen is discharged into the vagina.