PETRIFACTIONS. 109. HelmintEoritlius- 
,S 3 S 
i^MtiUtes. The Nautilus. 
j . The {hell fpiraL 
A With the outer whorl of the fliell much largor than the others. 
' Very common in Northampiov/hire, Ke>!t, Sheppa and other parw 
of England, in France, Germany, Italy, Saxony, Snxitc^ianA, 
yluftria. See, generally marxnoreousj fomeumes pyritaceoua 
or liliceous. 
a,. With the whorls of the fpire e'-aduaHy docreanng Inwardly. 
■Cornu j^jnmojiis Serpent -/tone ^ Snahe/i(me^ 
Helminthollthus Naatili, Syft. not, rcii. 3 - • 62. « ^ • 
Cornu Ammonia. Wolf. Half, tab 7. f, t~y t 8./. 6. 
Helmintholithus NmtiH. Muf Irftn 86 tab. 4. 
Ammonites. Gelner petrrf ty Gefn. ng. ibt,. J, 
.Semerhy Brjtijh minerals, tab, i Z. 
1 Wvth the circumference acute and entire, the di(k com- 
prelTed, and the futures flexuous. Muf.Ttffn fg.it. 
2 With die circumference carinate ahd etuire., the difkcora- 
' preilid, and -the grooves cIovcb. ¥iuf, T-ej/jn. f, to. 
«. With the circumference carinate and crenate, the grooves 
of the diflc elevated and remote. Muf Ftfin. Jig. 19. 
. With the circumference obtufe, the dilk a little compre&d 
andflriate. MuJ.Iefin.pg 7 - 
< With the circumference obtufc, the difkcranprelTed, and me 
grooves of the back cloven. MuJ. lejfin. Jg 2. 
£>. Witli the circumfeience depreffed, and .the hdes of ihedilk 
knotiv. Mu/, tejfm. fg. 8, 
7. With the circumference depreffed^ and the diik with acute 
' ilrix. Mr/. Tejfin. Jg. 3. 
8 With the -circumference fomewhat fquwe and carinate, and 
* the grooves acute and remote. Muf. Ftjfm. jig. n d. 
o) With the circumference rounded and knotty, and the grooves 
^’.trmfverfe and -flexu ius. Muf. Ufstn. fg. 
found m almoft everv part of the globe, in marble, bme- 
ftone, clay, marl, fwincit ne, horrdfone, agate, flint, 5 rc. 
from the fize of a fixpcnce to more than tw<. feet m diame- 
ter : the chambers are often hlled with cryAals of various 
hinds. 
< The Tleliclte, . 
’ found in Lapland, France, Spain, Italy, Hungary, Aufiria, Savrt- 
xerland. See. in limefloncj detached or hxccL, folitary or ag- 
^tegate. 
