inaBivityofM.AT r niR i &c. 139

allow that a multitude of such bodies mayperform this effect! We fee one single ma-chine requires the constant application of anexternal power; yet we suppose a vastly com-plicated one, which proportionally dimi-nishes the force imprest, may be a Power toitself! But to return; this circulation of theblood is but one, though a principal branchof the animal œconomy; for in the brain,nerves, stomach, guts, glands, in every partthere is motion, and every particle receivesits immediate impulse from the finger of al-mightyGod, if this one point be but certain.That matter is such a substance as resists achange of its state. Shall we yet solicitously

enquire if there be a mighty Governor of the* world } or how we may be certain that he hathpower or knowledge ; or goodness to regard thelow estate of man ? Or where those magnifiedeffects of his power are ? Or is it true that heworks constantly near us, round us,within us?

XVII. Nothing here said is meant as ifWe should not enquire into the nature andconstitution of the animal body, and themethods by which motion is effected in it.It brings unspeakable pleasure to the mind