[ 5°6 ] 
creafe the heat gradually, till they bring it to the 
higheft degree, which the workmen call hell-fire, 
and continue it fo for three days and three nights to- 
gether. 
When the heat is come to its due degree, the 
finoke fhews itfelf, with a fourifh fmell, that is not 
unpleafant; and, in a little time, the fait flicks to 
the glaftes, and covers the whole opening. The fait 
continues fuhliming, till the above-mentioned time 
is expired ; then they break the glades, and take out 
the fait, juft in the fame form, and of the fame fub- 
ftance, that it is fent all over Europe. 
At each falt-work, they have a glafs furnace, to 
melt the old glaftes, and make new ones. 
XLIX. Montium quor undam prcealtorufn^ 
main a ligni fojjllis copia quafi infarEloi'um , 
brevis defer iptio Sam. Chrift. Ilollmanni, 
Philofophice Profejfor. Goettingeniis, et 
S. R. Sodalis . 
Rea p5 e 0 b ' 1+ ’CUNT in Haftiae et principatus Coet- 
^3 tingenfis confiniis montes quidam prte- 
alti, qui tanta ligni foffilis copia abundant, ut fidem 
fere fuperet. Horum alter non procul Mundenfi 
oppido, circa Werram Fuldamque confluentes polito, 
verfus meridionalem plagam ad tantam altitudinem 
affurgit, ut mercurius barometricus in eodem ad 
i" 25'" pedis Lond. ab illo gradu defeendat, quern 
ad Werras Fuldaeque, ipfiufque adeo ex iifdem ori- 
undi Vifurgis, ripas habet : unde ex repetitis in 
utroque 
