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Rh conequently might have contracted a Degree of Heat two thouand Times tronger than that of red hot Iron; and would have been oon dipers'd in Vapour, had it not been a firm, dene Body. The gueing the Coure of Comets began then to be very much in vogue: The celebrated Bernoulli concluded by his Sytem, that the famous Comet of 1680, would appear again the 17$th$ of May 1719. Not a ingle Aftronomer in Europe went to Bed that Night; however they needed not to have broke their Ret, for the famous Comet never appear'd. There is at leat more Cunning, if not more Certainty, in fixing its Return to o remote a Ditance as five hundred and eventy five Years. As to Mr. Whiton, he affirm'd very eriouly, that in the Time of the Deluge a Comet overflow'd the terretrial Globe; and he was o unreaonable as to wonder that People laugh'd at him for making uch an Aertion. The Ancients were almot in the ame way of Thinking with Mr. Whiton, and fancied that Comets were Rh