Consequences of the Deluge.

Mysteries of Nature, I deservedly honour. IQuestion not, but he found in the Keinjhamu phiomorphites perfect Diaphragms of a ve-*y distinct substance from that which filledle Cavities, and exactly of that kind whichCovered the out-fide, being for the most partJ^hitifh, or Mother of Pearl coloured. Mr.■ a fler fore-mentioned , attests the fame,fifing in his Letter to me of Febr.q. 1687.^t in the ordinary Snake stones there, the'holly Diaphragms were very visible. In thisRespect they do resemble Nautili ; though° r their Figure they are much different, and0^ 2 distinct Genus. I never broke any ofme Keinjham stones;but of those found abouttyhitby in Yorkjbire many ; but could notobserve in them any stiell-like Diaphragms,°nly they broke into such pieces as I men-honed before. And my dear and muchl °noured Friend Dr .Tancred Robinson writes^0, That he had broken several Cornua Am-^ e #ix,but could never find any Diaphragms^Valves in them, though he consesleth Mr.n °otbivarel fhcw’d him one with such in hisc Urious Collection of Petrifactions. So thatuefe Diaphragms are not to be found in all,f lc forts of them. But if they be found in^e, it is a strong presumption, that they■yore at first in all, however they came to

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