of Riding , and other Modes of Gestation . 15 
agitation of his body, which must be allowed, at least, to 
have had the effect above explained: that of relieving the 
heart and arteries, from a great part of vtheir exertion in pro- 
pelling the blood, and may therefore have contributed to the 
cure, by that means only. 
The different modes above mentioned, are adapted from 
their nature to different degrees of bodily strength, and if 
there are cases in which, that which appears most eligible, 
may not suit the situation, or circumstances of the patient, it 
can not be difficult, to contrive other means of giving motion, 
so as least to incommode, and yet to give the greatest relief. 
A very gentle and long continued, or even incessant motion, 
may suit some cases better than any more violent and occa- 
sional agitation ; and in this way, probably, it is, that sea 
voyages have sometimes been attended with remarkable 
advantage. 
