186 
MicrRocRAPHIA., 
of differing kinds which I'may, perhaps, elfewhere endeavour more ac- 
curately to examine, and to fhew of how great benefit the ule ofa a4- 
erofcope may be for the difcovery of Nature'scourfe in the operations per- 
form din Animal bodies, by which we have the opportunity of obferving 
her through thefe delicate and pellucid teguments of the bodies of Infects 
acting according to her ufual courfe and way, undifturbed, whereas, 
when we endeavour to pry into her fecrets by breaking open the doors 
upon her, and diffecting and mangling creatures whil {t there is life yet 
within them, ' we find her indeed at work, but put into fuch diforder by 
the violence offer’d, as it may eafily be imagin’d how differing a thing we 
| fhould find,if we could,as we can with a Adicro/cepe,in thefe {maller crea- 
" tures, quietly peep inat the windows, without frighting her out of her 
ufuab byas,«. : sh 
io The form of the whole creature, as it appear'd in the Aficrofcope, may, 
without troubling you with more defcriptions, be plainly enough per- 
ceiv d bythe écheme, the hinder part or belly confifting of eight feveral 
jointed parts, namely, ABC DEF GH, of the firlt Fzgure, from the 
mid{t of each of which,on either fide,ifiued out three or four {mall brifles 
or hairs, J, I, 1, 1,1; thetail:was divided into two parts of very differing 
make-; one of them, namely, K, having many tufts of hair or brifles, which 
feem‘d to ferve both for the finns and tail; for the Oars and Ruder of this 
little creature, wherewith it was able, by frifking and bending its body 
nimbly to andfto,to move himfelf any whither,and to fkull and fteer him-. 
felfas he pleas'd;the other part, L, feem’d to be,as ‘twere,the ninth divifi- 
on of his belly,and had many fingle brifles on either fide. From the end V, 
of which, through the whole belly, there was a kind of Gut of a darker 
colour, MMM, wherein, by certain Periftaltick motions there was a kind 
of black fubftance mov'd upwards and downwards through it fromthe 
orbicular part of it, N,(which feem’d the Vextricle,or f{tomach)to the tail 
V,and fo back again, which periftaltick motion Ihave obferv'd alfo ina 
Loufe, a Gnat, and feveral other kinds of tranfparent body’d Flies. The 
Thorax or chet of this creature O.0 0 O, wasthick and fhort, and pret- 
ty tranfparent, for through it I could fee the white heart (which is the 
colour alfo of the bloudin thefe, and moft other Infects) to beat, and 
feveral other kind of motions. It was beftuck and adorn’d up and down 
with feveral tufts of brifles, fuch as are pointed out by P,P, P,P, the 
head Q was likewife beftuck with feveral of thofe tufts, $$ $3 it was 
, broad and fhort, had two black eyes, T T, whichI could not perceiveat 
all pearl'd; as they afterwards appear’d, and two fmall horns, RR, fuch 
as I formerly defcrib’d.- > | : een 
Both its motion and reft is very {trange, and pleafant, and differing 
from thofe of moft other creatures. I have obferv'd; for, where it ceales 
from moving its body, the tail of it feeming much lighter then the reft 
=5 _ of its body,and a little lighter then the water it fwims in, prefently boys 
it up to the top of the water, where it hangs fufpended with the head al- 
ways downward 5 and like our Autipodes, if they do by a frifk get be- 
low that fuperficies, they prefently afcend again unto it, if they ceafe 
| “moving, 
