Finally, and especially in muscular or nervous women, the temperament changes, and the constitution of woman approaches to that of man; the organs become rigid; and, in some unhappy cases, a beard protrudes. Old age and decrepitude finally succeed. CHAPTER IX. OF THE CAUSES OF BEAUTY IN WOMAN. The crossing of races is often spoken of as a means of perfecting the form of man, and of developing beauty; and we are told that it is in this manner that the Persians have become a beautiful people, and that many tribes of Tartar origin have been improved, especially the Turks, who now present to us scarcely anything of the Mongol. In these general and vague statements, however, the mere crossing of different races is always deemed sufficient; whereas, every improvement depends on the circumstance that the organization of the races subjected to this operation is duly suited to each other. It is in that way only, that we can explain the following facts stated by Moreau:-- In one of the great towns of the north of France, the women, half a century ago, were rather ugly than pretty; but a detachment of the guards being quartered there, and remaining during several years, the population changed in appearance, and, favored by this circumstance, the town is now indebted to strangers for the beauty of the most interesting portion of its inhabitants. The monks of Citeaux exercised an influence no less remarkable upon the beauty of the inhabitants of the country around their monastery; and it may be stated, as the result of actual observation, that the young female-peasants of their neighborhood were much more beautiful than those of other cantons. And, adds this writer, "there can be no doubt that the same effect occurred in the different places whither religious houses attracted foreign inmates, whom love and pleasure speedily united with the indigenous inhabitants!" The other circumstances which contribute to female beauty, are, a mild climate, a fertile soil, a generous but temperate diet, a regular mode of life, favorable education, the guidance and suppression of passions, easy manners, good moral, social, and political institutions, and occupations which do not injure the beautiful proportions of the body. Beauty, accordingly, is more especially to be found in certain countries. Thus, as has often been observed, the sanguine temperament is that of the nations of the north; the phlegmatic is that of cold and moist countries; and the bilious is that of the greater part of the inhabitants of southern regions. Each of these has its degree and modification of beauty.