MicroOGRAPHiIAs 
ruggedneff of thefurface; and chiefly fronya kind of tatnifh,’ or dirty 
fmoaky fubftance, which adheres tothe farface:of that: very hard! body: 
and though the pointed: parts cannot penetrate the fubftance of Glaf, yet 
gh they find pores enough inthe tarnifh, or at Jeaftmake them. 
This Stru@ure I fomewhat the more diligently furvey’d, becaufe I 
could not well comprehend, how, if there were fuch a glutinous matter 
in thofe {uppofed Sponges,,.asmofb(that have obferv di that ObjeG ita 
Microfcopey have hitherto believ d,how, I fay, the Fly could fo readily un 
glew and loofenits feet: and, becaufe I have not found any other crea- 
ture to havea contrivance any ways like it; and chiefly, that we might 
not be caft upon unintelligible explications of the Phenomena Of Natute, 
at leaft others thenthe true ones, where our fenfes were ableto furnith 
us with an intelligible, rationall and true one.» | 
Somewhat a like-conttivancetethisof Flies thalli we find:inmoftother 
Animals, fuch as all kinds of Flies ‘and cafe-wing'd creatures 5 hay, Ina 
Flea,’ an Animal abundantly fmaller then this Fly.. Other creatures, as 
Mites,. the Land-Crab, ec. have onely one! fmiall very fharp Fallon 
‘at the end of each of their legs, whichall drawing towards the center or 
middle.of their body, inable thefe exceeding light bodies tofufpend and 
faften themfelves to almoft any furface. a 907 
| Which how they are able ta do, will not feem firange, if we confider, 
firft, how-little body there is in one of thefe creatures compar'd to their 
fuperficies, or outfide,their thicknefs, per : 
haps, oftentimes,not amounting 
tothe hundredth pavt of an‘iich: Next,the ftrength and velit obchet | . 
creatures. compar'd: to their bulk, being, propostionuble to their bulk, 
perhaps..an teodredh times ftronger then an Horfe or Man. And thirdly, 
if we confider that! Nature does always appropriate the inftruments, fo 
as they/are the moft fit. and convenient to perform their offices, and' the 
moft fimple and plain that poflibly canbe ; this we may fee further veri- 
fy'd alfointhe foot of a Loufe which. is very much differing from thofeI 
have been deferibing, but more convenient and neceflary for’ the’ place — 
fits habitation,..each of his leggs bemg footed: with a couple of final | 
claws which he can-open or fhut at pleafare, fhip’d almoft like the claws 
of a Lobfter or Crabjbue with appropriated contrivances for his peculiar 
ule, which being tomoveits ‘toand fro upon the: hairs of the crea~ 
ture it inhabits, Nature has firnilhidone of its claws with joints, almoft 
2 the joints of a man’s fingers, fo ee iris: ableto encompafs.or 
a hair as firmly asa mancawa flick or rope. bik. eS & 
_. Nor, is therea ich adinirable and ‘wonderfull Adechanifar inv amare 
of a Spider, whereby he is able to fpm, weave, and climb, or rurton - 
curious'tranfparent; clew, of which I fhal fay more‘in the defcription © 
‘mal, 4 | 
_ And:to conchide,, we fhall iniall things find, that Nature Dosen 
onely work Mechanically, bist by-fuich excellene a poflible’ ralb,, 
Ous, as well as {tupendious contriva ces, that it ‘were impollible tor’ 
theveakn oH Aero aare = contrivance to do the fame thing | 
that thould have more: convenient properties. And.can any be aaa 
Aa 2 
