154 Of Shells. Part I. 
^Tl^LITTLirROUGH WILK. Nerites Turbine 
rugofo. 
‘ The LITTLE KNOBED WILK, Nerites Turbine tube- 
rato. 
The GREAT ROUND-MOUTH’D SNAIL, with a 
Pearl colour. Cochlea cadata. Here are three of thefe • of 
which two, are each above • a foot wide. Their pearly 
gIofs,onthe outfideis artificial 5 within,natural.The natural 
colour without is fometimes green, with white and bay 
fpots. 
One way whereby it receives a bright pearl colour, is 
by being lteeped in Vinegar 5 which eats away the rough 
and duller furface. 
The GREAT NAVLE-SHELL. ’Umbilicus marinus 
Indicus major. It is the lid of the Cochlea Codata 5 and hath 
its Name from its fhape. Very well defcnbcd by Wormius. 
The LITTLE NAVLE-SHELL, with wrinkled edges. 
A SECOND, with the Convex fide more plainly wind¬ 
ing like a Navle. 
A THIRD, with the fame fide befprinklcd with a great 
company of frnall round knobs. 
The little Navle-SheU is well exprefs’d by OleariusJ'ab .3 3. 
Fig. 7. Here are feveral of them kept in a Glafs. 
Not only this, but other turbinated fhells have their lid. 
Which, as Mr. Lyfter well obferves, is as it were another 
Value. 
Spirit of Nitre droped upon this Shell, rifeth up with a 
ftrong efferrefcence. The admirable Virtue of this Shell is 
(a) Mufsutn experienced, faith Wormius, (a) by men of very good note, 
in ftainching of Blood 5 the flat fide hereof being only applied, 
with Spittle , to the Forehead. 'Tis ufual to lay a cold Key 
or Stone in the Neck. But if the fame, efpecially a good 
big Pebble with one fide flat, like a Painters Mullet , were 
apply’d to the Forehead, I fhould expect as good advantage 
from that, as from the application of tins fhell. 
Cem" ll &' lc W omen in France, faith Boetius, (b) nimio Menfum 
Lapid. flume labor antes , commonly take this fhell reduced to a 
fine powder, which they find to be a very good remedy, 
and keep it as a Secret. 
The LESSER ROUND-MOUTH’D SNAIL, with a 
fhorter knobed Turban. 
The 
