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C '59

aventhly If into any menftruum we throw a body, which it dialves, and afterwards add another, to which the mentbruum has greater affinity than

it has to the aft, it will dilator the recond body, and let go the all, which will be precipitated and fall to the bottom. In like manner, if to well rectified (pifit of wine, we add an equal quantity of clear rain, or fiver water, there fluids (which incorporate Co readily) having a greater affinity to each

other than to the air they contain, will let go a great part of the air, which will rife to the top, or dick in fmall bubbles to the bottom and fides of the veal ; from whence I infer, that air is contained in there fluids lathe fame manner that the particles of a body are contained in a menauum that diffolves it ; and, therefore, that the air imbibed by there fluids, is pro-

perly (peaking, chained in them, and conrequently that any fluid which evaporates, or is imbibed by the air, is alfo, properly (peaking, diffolved in air. And upon this principle we may lay, that water is drawn

out of the air, by dry lilt of tartar, from its having a greater affinity to that talt than to the air. I thould not have been fo tedious in comparing together the natures of (elution and evaporation, in fo many inllances, but that it gave me an opportuday, at the fame time, of explaining Come of the phanomena that I at full intended to confider ; which explanations, I believe, will be admitted, if Lam right in the mean point, I have endeavoured to prove. And really when we confider how thadly foliation and evaporation agree in their leveret appearances, properties, and effeds,

I think we tsny

be cone:need that they are natural operations of the

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