Of Shells. 
Part 1 
ORIENTAL PEARL, round, andwithagood 
Water. 
PEARLS of the bignefs of a large Peas, and perfectly 
round, but without a Water. 
ROUND PEARLS, of divers Colours,)? . White, Allien, 
Brown, Red, and Bay. 
PEARLS of divers Figures, fc. Oval, Cylindrical, Flat, 
Conick, Twins, and three and four together. 
WELSH-PEALR. Given by the Honourable Mr. Boyle. 
They are molt of them rlatifh, and of a fhining blackilh 
colour. 
Heretofore, the molt rich fifhing for Pearls, was at the 
(a) Gefner. Ifland Margarita. Whence their Name, (a) At this time 
the chief Fifhmgs in the Eaft-hidies are three, the Perfian- 
Qulph, ontheCoaft of Arabia the Happy, and in the Ifland 
Ceylan. In the Weft-Indies, five 3 along the Iflands Cubagna^ 
and Manguerita^i Camogete,Riodela Hacha,md St. Marthas. 
They fifh in twelve-fathome W ater,five or fix leagues off at 
(b) Tavem. Sea, Spring and Fall, (b) 
indwn-r^- of p ear / s we nave tne f e following Preparations, and 
probably the firft, of all, the beft, if perfectly ground. 
Pulvis, EJfentia, Flores, 
Sal, Tintlura, Magifterium 
Liquor, Arcanum, 
The PEARLY OYSTER. Concha Cxlata. Tis lhaped 
much like the Mother of Pearl, but is fomewhat oblong. It 
hath alfo a pearly-colour within-fide $ but of a more leaden- 
water. 
The SQUARE-MUSCLE. Concha Rhomboidea, f. Muf 
culm jlriatus Rondeletio. That part where the Valves joyn, 
i. e. the Bafe, is long, not rounded, but ftrait, and ftandeth 
erect or perpendicular, by which it may be diftinguiiried 
from other Shells. It lies in the deeper parts of the Sea, and 
is rarely found. 
The RUGGED-OYSTER. Not defcribed, that I know. 
The Joynts hereof very fhallow. The Navle very oblique. 
The Sides thence produced, diffimilar. The Back cut with 
round Furrows, and the Furrows edged, and befet with a 
number 
Commune 
)Butyraceum 
)Plumaceum 
