An Experiment Concerning Uhe Progrefs of Artificial Gon- 
glaciatioDj and the remarkable AcddenU, therein ohjerv- 
edby the Florentin Thilofopkrs^and publijh't in their Saggi 
di NaturaliEfperienze p« 1475 novo EngliJIit for the fur- 
ther Tr/al and ohjervation of the Curious here, 
THefirftVeflTel, we ufed (faythoje Eminent Academifis) 
for this Experiment) wasaGlobe of Chryftal, whofe 
*michhntar Diameter was f of a hraccio'^^ with a long ftreight 
three EngUfh neck o( zhoxxt z bra ccio and an half, graduated 
inches. jjj^^ p2j.f5^ Having fiird it with common 
water, up to the fixth part of the neck, we put the Globular 
part into Ice and Salt^after the ufual manner of artificial Freez- 
ing of Liquors, and began very attentively to obferve all the 
motions of the water, from its kveU ft was fufBciently 
known beforej that Freezing worketh in all Liquors a con- 
traftion ^ asalfo, that isi the paffage, which the water maketh 
from being fimply cold to the leaving of its fluidity 3 and 
taking a confiftency and hardnefs by congelation, it not on- 
ly r^tyrns to the bulk, it had before it was frozen^ but fwells 
to a bigger V fince we fee, that veflels not only of glafs but of 
tnettal are forcibly broken thereby^ But what might be the 
limits and period of ihefe various alterations, which the Cold 
works therein, we as yet did not know 5 nor is it pofTible to 
attain that knowledge in opacoiis veflels. We thereforCgthat 
we might not want that infight, which appeared to be the 
Soul of all thefe Experiments/ had recourfe-to Chryftal and 
Glafihoping that by the tranfparency of that body we fliould 
be informed of the whole progrefs, in regard that at every 
motion^ which fliould appear in the water of the neck , we 
might quickly take the Globe out of the IcCj and therein ob- 
ferve the alterations correfpondent thereto. But the truth is, 
that we took more pains, than we can exprefi, before vve 
coald find out any thir g certain touching the periods of the{^ 
accidents^ And 
