Fig. 13, 14. unknown, as well as fig. 15.

Fig. 16. Unknown. The reason of the four last being not to be distinguished is, that they seem to be the buds of their several species, before they were perfectly formed. So that while some of the antediluvian productions are mature, others appear to be premature; and consequently one would be inclined to think them the inhabitants of places of different latitudes.

Fig. 17. A species of foreign Walnut, injured and compressed.

Fig. 18. A Plumb-stone.

Fig. 19. The claw of an American Crab; which, being on the opposite side of the mass containing the body, could not come in view with it at the same time.

Fig. 20. The body of the crab, with other parts, appearing thro' the stony matter that invelopes it, which appears to be an induration of yellow clay.

Fig. 21. seems a long American Phaseolus. Part of the petrified husk is upon it.

Fig. 22. An American Echinite of the flat kind, much resembling that species which Rumphius calls Echinus sulcatus primus.

Fig. 23. Arista cujusdam Graminis. This body has all the characteristics of an ear of corn, or some species of grass, of which there are many.

This has been taken for a spine of an Echinus: but, as we are to consider its nearest resemblance to whatsoever body, we must conclude it as we have said. I never saw any spine in the least like it; but an ear of corn, ripe and dry, is as susceptible of being petrified, as a crustaceous animal, in every respect. Indeed the spiculæ of the ear, each arising from the grain, being very slender, are of course destroyed during the petrifaction; but the form of the ear is actually preserved, as much as the nature and circumstances of the thing will allow.