He thinks we can postpone old age by the following agencies. We should develop, not discourage, bodily exercise for without it there is a slow retrogressive change. The more nearly the diet is reduced to bread, milk and fruit, the longer the person will live and enjoy good health. Some can go for long intervals without feeding though more thrive on small quantities taken frequently. He condemns all purgatives and would regulate by salads, nuts, fruit, and thinks the best drink is buttermilk, which has salutary effects on both bowels and kidneys. Next comes koumyss. Fluids are best taken in abundance, but if the heart is weak they should be avoided before exercise, for this increases the cardiac strain. If the skin is dry, he advocates dry rubs rather than cold baths and olive oil occasionally, of which he says it is amazing how much the skin will absorb. He speaks emphatically of the dangers of chills and of the trend of all tissues to harden, stiffen, or lose their elasticity. Tissues about the neck are particularly prone to lose vigor. Regulated movements of the neck and upper truncal muscles often improve hearing, vision, cerebration, and sleep, and the same is true of friction. Most digestive disturbances, even those of early middle life, are due to relaxation of the supporting tissues of the great organs in the abdomen. This dilation is found in at least 60 per cent of adults, and it produces a long train of alterations. The kidneys are supported mainly by their blood vessels, so that if they sag their circulation is impaired, and this kind of ptosis is very common. Hence faulty attitudes are very important for all visceral ptoses, while he finds much to commend in the use of abdominal corsets, even for fleshy men. Elasticity of the ribs should receive attention and the author prides himself on exercises that increase the elasticity of the basal tissues which sclerosis is prone to assail. The capacities of individuals for exercise in the open air can generally lessen the need of medical supervision. With old people, the extensors should receive more, and the flexors, less attention and there should be sufficient stretching, torsion, etc.