Where the constitution is of a mixed nature, or a compound of two or more of the temperaments already described, a diet composed of animal and vegetable aliment in nearly equal proportions is under ordinary circumstances the best. But where any one temperament predominates, the diet ought to be modified accordingly. Where, for example, the sanguine constitution prevails, characterized by a florid complexion, great activity, strong action of the heart and bloodvessels, and a consequent liability to diseases of excitement and inflammation, the food ought to be habitually of a kind calculated rather to soothe than to stimulate. Red-meat, spices, wines, and fermented liquors ought to be used sparingly; and the principal support to be derived from refreshing soups, fish, mucilaginous vegetables, acidulous fruits, and diluting drinks. In the case of lymphatic persons, on the other hand, where the circulation is weak and slow, and all the functions are feeble, the system is benefited by the stimulus of a larger proportion of animal food, especially red-meat and game; while vegetables, soups, and fluids of all kinds prove relaxing and hurtful. Aromatics and spices, however, are useful, as is also wine in moderation, and conjoined with adequate exercise. If, again, the individual presents a highly nervous temperament, characterized by delicacy, unusual sensibility to impressions, and great excitability, without proportionate strength, such as is often seen in females and in men of genius, care ought to be taken not to make use of a heating or stimulating regimen. White-meat, such as fish and fowl, are more suitable than the kinds in ordinary use. Spices are also hurtful, but farinaceous and mucilaginous aliments and ripe fruits are generally admissible--always supposing that moderation in quantity is attended to, and that the mode of life is, in other respects, regular and rational. Where the dark energetic bilious temperament predominates, and much bodily activity in the open air is enjoyed, more latitude in the choice of food is admissible than in any other constitution. If, however, much and continued exertion is required, a full supply of animal food becomes indispensable for the due support of the system, and the strength cannot be adequately supported on vegetables alone. In such circumstances a moderate allowance of wine or other stimulus is borne with less detriment, if not with more advantage, than where the temperament is essentially nervous. On this subject, however, there is still so much need for inquiry, that I shall not enter farther into details, but urge the reader to make observations for himself. * * * * *