[ 638 ] 
CLASS III. AMPHIBIA. 
, THIS clafs of animals is diftinguillied by a body cold 
rally naked ; a countenance ftern and expreflive ; voice harflt ; 
moltly lurid, and filthy odour: a few are furnilhed with _3 
poifon ; alj have cartilagenous bones, flow circulation, exqui‘’^^|j,jcl‘ 
and hearing, large pulmojnary yelTels, lobatc liver, oblong 
ftomach, and cyftic, hepatic, and pancreatic dudls : they , j'ooii' 
in diaphragm, do not tranfpirc, can live a long time without 
are tenacious of life, and have the power of reproducing '^0#’ 
have been deftroyed or loll ; fome undergo a metamorphofi® ’ tlii’ 
call their Ikin ; fome appear to live promifcuoully on land of ' 
water, and fome are torpid during tfje winter. 
They are divided into 2 Orders. 
id f 
L reptiles. Thefe have feet, and flat naked em'^ 
auricles. 
II. SERPENTS. Feet o ; eggs connedlcd in a chain, un 
double, muricate. 
Thefe lall are call upon the earth naked, without limbs, 
to every injury, but frequently armed with a poifon the rnou 
and horrible ; this is contained in tubular fangs refembliu/ 31'*’ 
placed without the upper jaw, protruded or retradled at pR^Pfis 
furrounded with a glandiilar velide by which this fatal flu'u 
.r»ni a giduuuiar veiicie Dy winch this ratal 
creted. But left this tribe Ihould too much encroach upon m® 
other animals, the benevolent Author of nature has armc 
a fifth part only 
, (which are marked (J) in this dreadful man- , 
has ordained that all flioiild call their Ikins, in order to infp"^'^. jfU 
celfary fufpicion of the whole. The jaws are dilatable and U®. 
- ■ , -- .......K-. i 111, javTi uic unaiaow 
culate, and the cefophagtts fo lax that they can fwallo''^> c‘K 
inailiption, an animal twiqe or thrice as large as the neck j jg o> 
our is variable and changes according to feafon, age. or 
living, and frequently vaniflies or turns to another in the dead 
tongue filiform, bifid ; Ikin reticulate. 
CH 
AKAC'^ 
