Orth.—The sea and the drop are different in quantity, though alike in quality; the one is greatest, the other is least; the one is sweet and the other is bitter; but in all other respects you will find a very close relationship. The nature of both is moist, liquid, and fluid. Both are created. Both are lifeless yet each alike is called a body. There is nothing then absurd in these cognate natures undergoing commixture, and in the one being made to disappear by the other. In the case before us on the contrary the difference is infinite, and so great that no figure of the reality can be found. I will however endeavour to point out to you several instances of substances which are mixed without being confounded, and remain unimpaired.