i26 NATURAL THEOLOGY. 



and can trace them to the brain ; its necessity we also know 

 because if the thread be cut, if the communication bo inter- 

 cepted, the muscle becomes paralytic ; but beyond this we 

 know little, the organization being too minute and subtile 

 for our inspection. 



To what has been enumerated, as officiating in the single 

 act of a man's raising his hand to his head, must be added 

 likewise all that is necessary and all that contributes to the 

 growth, nourishment, and sustentation of the limb, the repair 

 of its waste, the preservation of its health : such as the cir- 

 culation of the blood through every part of it ; its lymphatics, 

 exhalents, absorbents ; its excretions and integuments. All 

 these share in the result — -jom in the effect ; and hoAV all 

 these, or any of them, come together without a designing, 

 disposing intelligence, it is impossible to conceive. 



