...has often been said of persons who venture their lives in a ship, that there is only an inch-board between them and death ; but in our bodies, especially...arteries." " Well then," replied his father, " I will endeavoui*>to give you some notion of the engine that works this curious machinery ; that is, the heart."...

...whereas the veins, in which the mischief that ensues from injuring the coats is much less, lie in general above the arteries, come nearer to the surface, and are more exposed.* • The Blood. The veins and arteries are all filled with a fluid called JHood. usually considered...

...whereas the veins, in which the mischief that ensues from injuring the coats is much less, lie in general above the arteries, come nearer to the surface, and are more exposed. The use of the circulation of the blood, thus provided for, is probably, amongst other uses, to distribute...

...whereas the veins, in which the mischief that ensues from injuring the coats is much less, lie in general above the arteries, come nearer to the surface, and are more exposed. It may be further observed concerning the two systems taken together, that though the arterial, with...