If girls were to ride more on horseback than they now do, we should hear less of crooked spines and of round shoulders, of chlorosis and of hysteria, and of other numerous diseases of that class, owing, generally, to debility and to mismanagement. Those ladies who "affect the saddle" are usually much healthier, stronger, and straighter than those who either never or but seldom ride on horseback. Siding on horseback is both an exercise and an amusement, and is peculiarly suitable for the fair sex, more especially as their modes of exercise are somewhat limited, ladies being excluded from following many games, such as cricket, and foot-ball, both of which are practised, with such zest and benefit, by the rougher sex. 341. _Do you approve of carriage exercise_? There is no muscular exertion in carriage exercise; its principal advantage is, that it enables a person to have a change of air, which may be purer than the one he is in the habit of breathing. But, whether it be so or not, change of air frequently does good, even, if the air be not so pure. Carriage exercise, therefore, does only partial good, and ought never to supersede either walking or horse exercise. 342. _What is the best time of the day, for the taking of exercise_? In the summer time, early in the morning and before breakfast, as "cool morning air exhilarates young blood like wine." If a boy cannot take exercise upon an empty stomach, let him have a slice of bread and a draught of milk. When he returns home he will be able to do justice to his breakfast. In fine weather he cannot take too much exercise, provided it be not carried to fatigue. 343. _What is the best time for him to keep quiet_? He ought not to take exercise immediately after--say for half an hour after--a hearty meal, or it will be likely to interfere with his digestion. AMUSEMENTS. 344. _What amusements do you recommend for a boy as being most beneficial to health_?