PROGRESSU CHEMIÆ. M7
ftickneß ft em to be made up of infinite fharp pointed needles»
And as for (and, the figure thereof is various, nay, infinite,
as it appears in Microftopes, Now how can any man imagi*
ne that fuch variety of figures in fand can ft comply with the
determinate figures of falt', as to touch one an other in mini*
mis t which is necefiary to make it malleable? &X. i, e* His
adde, podnatura malleabihtatis (ut ita exprefliüsreddam
qvåm politiüs) in artiißima partium coh&fione, & fiqbaci
ad immutandam in minuttfiimas partes figuram promptitu»
dine confiftat; parum neutrum convenit moribus vitri.
materia, unde conficitur vitrum, arena &/alia, defii-
tuuntur figuris ita firmiter fe fe amplexantibus♦ Salia uni-
verfa peculiares ofiendunt & determinatas figuras, pas in
foluttonibus maximis, (f acerrimis flammarum complexibus
retinent pertinacifiime , pod pluribus exemplis ofiendere
promptum effit, Haipfefigur a varis(unt, ut varium e ft(alium
ipforum ingenium. Nitrum & (alia omnia lixiva in acumina
definunt, ob idam pungendi, adurendi^ vim formata vi*
dentur ex infinitis acicularum acutißimarum cohortibus*
Gfuod ad arenam, ejus figura varia e ft, imb infinita varie*
tatis, pod vel microftopta demonflraverint* Qyts jam fibi
perfvadeat eam figurarum in arena varietatem ita cum de-
terminatis /alium figuris poffi conjungi, ut partes ear undem
fi tangant in minimis , id pod ad malleabilitatem tamen
(hoc eft dudilem fub malleo obedientiam) requiritur.
Qyibus cum vix qvicqvam (peciofius dici potuifTe ap-
pareat, vix qvicqvam minus folidum deprehenditur* Sedeidem
Largimur non inviti & falibus diverfas figuras, & are-
nis, fed easdem inviolatas manere poft illam flamma- occurrt~
rum acerbitatem, hoc eft qvod ab erudito Anglo cupi-
mus demonftranim. Ciim enim violentus ille ignium
P 3 genius,,