Of OXFO^D^sniTiE. 105 
it to be Lapis fui gcnerk^ and not to have been inolded by afti-ia- 
itdCochl-fidL 
78. Befide CockJ^ and Efcallop-flones^ there are others that 
feem to be of the Oyfter kind, found plentifully in the Gravel- 
pits without St. Clements^ in Cowley -common^ and in a wood neai: 
Wood-eaton • amongft them there arc fome of an oblong figure^ ve- 
ry thick, and of a bluifh colour, fuchas that depided Fig, 18. 
which I guefs may be the fame with the petrifi-^d Concha oblongd 
cra/ja, mentioned by Dr. Merret found in Wvrcefter-JInre^ and 
there called Crow-ftones^ Crow-cups^ or Egg-ftones ; or elfe the 
more protuberant part of the Mytulu^ niger of Aldrovandm \ or 
the Mytulws of Rondetetim \ 
79. But others are again of the true (?jy?er Jiape^ called Oflra- 
cites ^ or hi^rpsou, reprefented Fig. 19. fome whereof ^xtblue^ 
and others reddijh^ of the colour of the Gravel out of which 
they are taken ; Thefe are generally greater, thicker and weigh- 
tier, than the true OyBer-Jhell^ yet like them feem to be refolved^ 
according to the opinion of Steno\ into many little fljells^ the 
innermoft being always the greqteft^ and the outermoft the lea^l : 
Upon which very account I could eafily have affented, that thfcfe, 
and the former, might once indeed have been ^e// ; but that 
we only find (j ufl: as in the Efiallops) the protuberant parts of the 
Jhells^ and never any of the flat ones ; which had they been once 
fiffjes^ we have little reafon to think^ could have been thus abfenc 
from them<i 
80. We find alfo in Oxford-Jhire ^ fort of Mytuloides , or 
Mufcle-flones, of an odd kind of figure, and not eafie perhaps to 
be parallel'd, though the te§laceou6 Kingdom be of large extent i 
They are not hollow, but within a terra lapidofa of a yellowilli 
colour, and cover'd without with a white (liining kind of Arma- 
ture^ with ablong Uneations agreeable to the figure of the ftone^ as 
inT^^. 5. Fig. I. found in digging a Well in the Parifli of Cley^ 
don. To which we may add another fort remarkably fmall, found 
m Hedd ingt on Qu^rnes^ Fig. 2. which finiOi my difcourfe con- 
cerning fuch/or/e^ as refemble the o<^eji^y^H^^, or te§iaceom fielU 
fifh. Whence I proceed 
81. To §iones reprefenting the iJ&?^ocnsS'ipf^^ or the fldl-fip of 
\ Vlnax rerum Natur. Brit. p. 2161 ^ Ve T^ftacek, lib, 3. caf' 71 ^' ^ Be Tijiaceis^ llB. 1, cdp. ^6, « 
Trodmni verfs Atgl.p- ■]'^-,-]6, 
O ^ thi' 
