OoYS 
the clay or fuller’s earth : hace is near feven feet deep, and 
above this there is a ftratum of a ftiff red clay, of which 
they make tiles in ae place his is eel with a little 
vegetable mould, and the soni of this ftratum of tile-clay 
cannot be afcertained, becaufe of the unevennefs of the hill, 
Thefe oyfters are fometimes found whole, but more ufually 
404- 
- OvsteEr-Shells. ‘Thefe are an alkali of a more powerful 
kind than is commonly fuppo = na probably are in reality 
i of t re d 
owing to their containing in the body of ‘the fhell a confider- 
= portion of fal-falfus, which is eafily perceived upon the 
ongue, and which keeps the whole fubftance of the fhell in 
a ie of half-diffolved ttate. Thefe thells are found to pro- 
the juices of plants, and form with them a falt aca to 
that plant ; and this is Bsa) the cafe in regard to this falt, 
fince it is evident tly of a more penetrating tafte, and of a dif. 
ferent {mell, from fe falt left by the aoe between the 
feveral exten {cales, or ae of the 
s oy by Mr. ‘oates to be a 
e 
method of preparing them for taking alte which was 
what he always ufed. 
Take the hollow fhells of the oyfters, throwing away the 
flat ones as not fo good; wafh them perfeétly clean, and 
then lay them to dry in the fun; when they appear dry, 
beat them to —— ia a marble mortar, they will be then 
a large quantity % moifture ; lay them 
pigtiees dried, and then finih the 
and oo’ 
Par. 
For he method of calcining oe and thus pre- 
paring a phofphorus, fee Canton’s Pao 
eee as ee - Natural Hi ory, ry, a name given by 
writers to a kind of {mall worm found in oyfters, which 
fhines in the dark, i in the manner of the glow-worm; but 
with an univerfal light, and not in a peculiar part only. 
2e firft obferver of thefe oyiter-worms was M. De La- 
voye, who communicating his obfervations to M. Auzout, 
gave occafion to a very diftin@ account of them from this 
uthor 
The firft thing wy fie itfelf, on the opening of the 
hel =~ contai fe wo 
mmy moitture, ata appears like 
esl, a being drawn out, will extend itfelf to near half 
OoYSsS 
an inch long, and er as much, for’ that whole length as in 
the contracted ftate : alfo fhine for fome time after it 
is raat out of the o fer 
ftriQer a ann thefe fhining fubftances are 
found i be rea Paes worms, and there are indeed three 
a aie of them One ve rt is whitifh, and has 
wenty-four o 
fembles that of - eel, when the fkin is ioe off. aoe 
in the head is satires i an reyes and it i 
markable that the creature has but ao 
here are other worms found alfo in the oytter, 
particularly a large gre eyith one, with two horns, a great 
3_ but thefe do not thine. 
fituated i 
ose 
Ovs Bay, a arias for {mall ‘velfels, i in the fouth-weft 
limits “Of “Barnta ble, Maffachufetrs. It derives its name 
from its excellent oyfters 
Oyster Creek, a river of North Carolina, which runs 
into the Atlantic, N. lat. of, W. long. 76° 454.— 
ae a river of New Jerfey, | ye runs into the Atlantic, 
N. lat. dice 44’. W. long. 74° 
difcovered by captain Vancouver in the year 17913, and fo 
called from its plenty of oyfters. It is rendered admiffible 
only bo veflels of a middie fize, by the fhallownefs of the 
water on ‘the bar, ca ea from fhore to fhore, on which 
were "found nl t of water, although the depth in- 
creafed from five to leven fathoms on each fide. 
of importance, this inco 
venience might be cafily remedied by wharfs. 5. lat. 36° 5 “8 
118° 15/, 
Oyster Haven, one of the numerous bays on the fouth- 
weit al rot Ireland, in the county of Cork, The entrance 
is about two miles vegas - ee harbour. It is feldom 
requented, being too ne uch fuperior harbours of 
Cork and aay but oe 18 ;coed fhelter for {mall vef- 
fels. M*Ken 
OysTER is an ifland in the bay of Bengal, near the 
coaft of Ara N. lat. 20° 1 ng. 
Alfo, a fall stand in the bay of Sligo, Treland, hae 
which and the land is the only place in the harbour where a 
‘veffel can ride afloat at all hours of the tide. This is diftin- 
guifhed by the name of i al a harbour, and has well- 
fheltered anchorage. M*Kenz 
OvsteR J/land Harbour, a bay or harbour on the At- 
Jantic, on the ¢ oak of Maflachufetts. N. lat. 41° 35'. 
W. long. 70° 24’. 
OvysTER 
