notion of the external and refilling fubilancc. It

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is probable, however, not only that no man, butthat no animal was ever born without the Senfeof Touching, which feems effential to, and infe-parable from, the nature of animal life and exift-ence. It is unneceffary, therefore, to throwaway any reafoning, or to hazard any conjec-tures, about what might be the effeds of what Ilook upon as altogether an impoffible fuppofition.The eye when prelied upon by any external andfolid fubftance, feels, no doubt, that prelfure andrefiftance, and fuggefts to us (in the fame man-ner as every other feeling part of the body) theexternal and independent exiltence of that folidfubftance. But in this cafe, the eye ads, not asthe organ of Sight , but as an organ ol Touch ; forthe eye polfelfes the Senfe of Touching in com-mon with almoft all the other parts of the body.

The extenfion, figure, divifibility, and mobili-ty of Color, the foie objed of Sight , though, onaccount of their correfpondence and connexionwith the extenfion, figure, divifibility, and mo-bility of Solidity, they are called by the famename, yet feem to bear no fort of refemblanceto their namefakes. As Color and Solidity bearno fort of refemblance to one another, fo neithercan their refpedive modifications. Dr. Berkleyvery juftly obferves, that though we can conceiveeither a colored or a folid line to be prolon-ged indefinitely, yet we cannot conceive the oneto be added to the other. We cannot, even inimagination, conceive an objed of Touch to be