out including their thiglis, which are large and 
flefliy. The French Ipealc highly of the whi'ce- 
nefs, texidernefs, and delicacy of their flefhi and, 
in dreffing them, they wafte only their heads. 
They fricafee them like chickens, and boaft that 
ftrangers really take them for fuch : and tlie negroes 
hunt them in the night-time with lighted fugar- 
canes that have pafled through the mill. 
Some naturalifts obferve, that thele Frogs bring 
forth in hollow trees; and that they firft emit a 
quantity of white froth, about the breadth of a 
man's hand, on which they lay fix, eight, or a do- 
zen eggs, more or lefs, of the fize of coriander 
feeds, and of an orange colour. It is uncertain 
whether rhev fit on them or not ; however, it is 
well known that the females never quit the place 
where they lay dieir eggs till they are hatched. 
Frog, Carolina. In this country there are 
feveral fpecies of Frogs; but the moft fingular is 
the Bull-Frog, fo called from the exa£l refem- 
blance which it's croaking bears to tlie voice of 
that animal. Thefe Frogs are very large ; and, 
according to fome authors, afford as much flefli as 
a full-grown pullet. Catefby fays, that they are 
of a brown colour, having a great number of dark 
fpots mixed with a greenifh red. The eyes are 
brown; the irides are yellow; and under the eyes 
there are two round ears, covered with a thin 
membrane. 
Frog, American, of Seba, This fpecies has 
an air-bladder on each fide of the lower jaw, which 
in hot weather is replete with that element. It is 
of ^ bright reddifn colour with deep red fpots ; 
and It's claws are large, and fhaped like the leaves 
of fcu! vy-grafs. This Frog begins to croak with 
uncommon ardour about fun-fet. 
Frog, Brazilian. The head of this crea- 
ture, which is large, refembles that of the toad ; 
and the body is of areddifh afn-colour interfperfed 
with red warts. 
Frog, Sea, American. This fpecies is of a 
prodigious fize; the feet, if we may credit Seba, 
being a quarter of a yard in length. The whole 
body, except the head, is an afli-coloured brown, 
marked with great and fmall v^^arty fpots of a faint 
greyifh colour belov/, and of a yellowifn afh- 
colour on the apex. The back, and the fpace 
between the fhoulders, rife into a prominence, and 
feem to be divided from the other parts bv whit- 
ifh lines. On the fore- feet there is a kind of ar- 
mour, of a bright afh-colour fpeckled with black; 
the head is barred with fmall reddiih ftreaks; the 
eyes are large and fparkling; the ears are round 
and fhort; the tongue is large, it's fore- part ad- 
hering to the lower jaw; the fore-feet have each 
four toes, compofed of four joints; and the toes on 
the hinder feet are large, and armed with claws 
connefted by a thin membrane. 
FROG-FISFI. An appellation given to the 
rana pifcatrix, or lophius; called in England the 
fca-devil and the angler. 
Frog-Fish of Surinam. This fingular ani- 
mal is produced by the transformation of a Frog 
into a Fifh. The Frog, in it's firft ftate, is fpotted 
with brown, yellow, and green, which colours are 
paler on the belly; the hinder feet are webbed like 
thofe of the goofe ; but the fore-legs are deftitute 
of webs. The firft metamorphofis this creature 
tindergoes, is the protrufion of a tail ; after which 
it gradually acquires the fliape of a Fifh, the two 
fore-feet decreafing and wafting by degrees, and 
then the hinder legs, till at length the Frog is 
transformed into a perfed Fifli. The Indians and 
F U L 
Europeans of Surinam call thefe Fifties jackiesf 
they are cartilaginous, of a fubftance like that of 
the muftela, and efteemed very delicate food ; and 
a bone or cartilage runs down the back, from 
which fpread fmall bones all over the body. 
Thefe Fifiies are firft of a darkifli colour, and af- 
terwards grey; they are adorned with beautiful 
fcales ; and the body of each is divided into two 
equal parts. 
FROTH WORM, or CUCKOW-SFIT. 
An appellacion given to a vv-hite froth or ipume, 
very common, during the fpring and fummer fea- 
fons, on the leaves and ftalks of various plants. 
Though all writers on vegetables have perhaps no- 
ticed this froth, few of them, till very hnely, have 
underftood it's origin. Many imagined it to be an 
exhalation from tlie earth ; fome efteemed it the fa- 
liva of the cuckow; and others, the extravaf^ted 
juices of the plants, or a kind of hardened dew. 
But all thefe opinions are equally erroneous: tlie 
froth in queftion undoubtedly proceeds from a 
fmall inclofed infeft, with an oblong, obtufe body, 
a large head, and fm.all eyes. This animal emits 
the fpume from the anus, and other parts of it's 
body; and, after undergoing feveral changes in 
this fituation, it burfts into a v/inged ftate, and flies 
abroad in queft of it's mate. It has four wings, 
the two external ones being of a duflcy brown 
colour marked with two white fpots. 
FRUGIVOROUS. An epithet irfed by na- 
turalifts to exprefs fuch animals as fubfift princi- 
pally on fruits. 
FRUIT-FLIES. A name given to a fpecies 
of fmall black Flies found in vaft numbers among 
fruit-trees in the Ipring feafon. Lewenhoeck, 
who preferved fome of thefe infefts for his micro- 
fcopical obfervations, obferved that they did not 
live longer than a day or two; but that the fe- 
males, during this period, laid a great number of 
longifli eggs. Tiiofe gardeners who fuppofe that 
tliefe Flies wound the leaves of trees, labour under 
a miftake: it is true, indeed, that they feed on 
their juices, but they have no weapons with which 
they can extraft them; they fubfift on fuch as are 
naturally extravafated ; and, when thefe are infuffi- 
cient, they haunt thofe places to which pucerons 
refort, and partake of the fruits of their labour. 
FRUSO. An appellation given by fome na- 
turalifts to the Coccothrauftes Criftata Indica, or 
Virginian nightingale. 
FUCA. A Ml nearly allied to the genus of 
blenni; the phycis of Ariftotle and iElian, and the 
tinea marina of Salvian and Rondoletius. 
FULICA. The claftlcal name for the Coot. 
FULIGULA. A name given by Gefner to a 
fpecies of duck common to feveral parts of the 
world. 
FULLO. An appellation given by Gaza and 
others to the tench, or black cyprinus ; called by 
the Greeks pfylon. 
FULMAR. A fpecies of procellaria, or pe- 
trel, that inhabits the ifle of St. Kilda, one of the 
Hebrides, where it appears in November, and con- 
tinues the whole year, except during the months 
of September and Oftober. It lays a large white 
egg, and hatches it's young about the middle of 
June. _ 
This bird is extremely beneficial to the ifland- 
ers; inafmuch as it fuppliesthem with oil for their 
lamps, down for their beds, a delicacy for their 
tables, a balfam for their wounds, and a medicine 
for their difeafes. It is alfo an infallible prognofti- 
' cater of the weather, particularly of the change of 
4 L wind; 
