Part II. in the Cke ATio-^. 237 



The reafon of this Pkdemmcnoji ^ viz, that 

 dvct'Kyymot^ or want of Pain we experience in Sleep, 

 during and after a long decubitus on one Side, 

 'Dv, Lifter in his Journey to Paris, p. 113. and 

 Dr. Jo72es in his Treatife of ^he Myjieries of 

 Opium reveal' d, attribute to the Relaxation of the 

 Nerves and Mufcles in time of Sleep ; and the 

 Sepfe of Pain and Uneafinefs when we lie awake, 

 to the Teniion of them during that time: This 

 I do not deny, but yet I think the Reafon I have 

 affign'd hath a great Intereft in that Reft and 

 Ealinefs we enjoy when afleep. 



2. Becaufe Sleep is inconfiftent with the Senfe 

 of Pain , therefore during Reft , thofe Nerves 

 which convey that Motion to the Brain, which 

 excites in the Soul a Senfe of Pain, are obftrud;- 

 ed i this I my felf have had frequent Experience 

 of fince I have been troubled with Sores on my 

 Legs ; upon fudden awaking finding my felf at 

 perfed Eafe, and void of all Senfe of Pain for a 

 Minute's time or more, the Pain then by degrees 

 returning ; which I could attribute to nothing 

 but the diffipating that Vapour, or whatever elfe 

 it were, which obftruded the Nerves, and giving 

 the dolorifick Motion free Paffage again. 



Upon fecond Thoughts, and reading what 

 Dr. Lijler and Dr. Jones have written concerning 

 this Subjed, I rather incline to believe, that the 

 Motion caufing a Senfe of Pain, is convey 'd to 



the 



