f US ; 
Mqs. For altho* different Clmes^ cr different places of 
habitation might much affedthec^/^toWfliape, andcaufe 
a difference 5 yet it is hard to conceive ^ how it fhould 
caufe fo vaft an alteration, in the moft principal V/ztpW Or- 
gans. However tho we are gravel'd^ in affigning howfirft 
this fort of Worm fhould come into the body :>* yet being 
once there ; there is nothing more plain, than that they 
are propagated by an ^^/^/W/^^Z generation ; there being fo 
perfed a diflindiofi of Sexes, Tl/^/^and i^^;??/^^^ 5 and the 
Organs belonging to each fo curioufly contrived, fo con« 
fpicuous and plain; that they may further illuflrate the 
late Inventions of fome 5 and do feem to ihew* how fol* 
licitous Nature is in preferving , and propagating the 
meanefl Species* Bnt as in this Worm^ there is a moft 
evident difcrimination of Sexes i foin Emthvoorms^ there 
is nothing of this nature to be found but they are perfed: 
Hermophrodites^ each Worm having the Organs belonging 
hothto Male zwA Female \ which is common to them with 
Leeches^ Snailsy &c. 
Iftiall give the obfervations I have madej n^onboth oi 
themi fuch rather as may refpeft xhtiv Natural Htjlory^ 
and may be moft fuitable to thisoccafion 5 than their Me- 
dical account b which it may be hereafter^ I may more en- 
large upon ; Nor do I think this may be unferviceable to 
our faculty > for fuch hints as do improve the Theory, will 
the Pm:vixtoo. 
I fhall begin with t\i^ Joynted Werm*^ and (hall purfue 
the Method I have already given v in more fir idlFy con- 
lidering thofe particulars^ which 1 have laid down, todif- 
criminate this from all other forts of Worms, And 
the firft iSj it*s h€mgjiat', hence caird Lumhricm Latm^ 
and by Hippocrates , rmia. e» Fafcia, and by fome in 
Englilfe, the Tape-worm* This fiatnefs of the body* fuffici- 
ently diftinguiflies it from the others^ which are ufually 
bred in the body s and are either fliort, and fmall, and then 
csilkd j^fcarides *y or longer, as the T^re^^J" > whicharefo 
Q^z called 
