C 41 3 
of manufacturing it into Cloth or Paper, which 
would for a confiderable Time remain unconfumed 
in a common Fire : it is found either enclofed in 
other Stones, or on the Surfaces of them. It has 
been fuppofed that this Kind of Cloth was made 
ufe of among the Romans at their Funerals, to pre¬ 
serve the Allies of the Deceafed unmixed, in order 
to their being depofited in the Urn. On fome late 
Experiments made, a Napkin cf this Cloth has 
been found to fuffer a very fenfible Diminution of 
its Weight every Time it was put into the Fire. 
Under the Title Sulphura are comprehended all 
the inflammable -Minerals. 
Ambers of various Kinds : This is a yellow Sub- 
fiance, more or lefs tranfparent, of a gummous 
Confiftence, a refinous Tafte, and a Smell like 
Turpentine; when rubbed fo as to be warm, it at¬ 
tracts light Bodies, as Straws, &c. and yields a 
Kind of'Light in the Dark : it ferves for many 
Ufes, being often manufactured into Heads of 
Canes, Toys, Cups, &c. It is found in the great- 
eft Plenty on the Baltick Sea along the Coafts cf 
Pruff a. 
Bitumens, Jets, and Coals, flnooth pitchy black 
Stones, muft here be noticed; and the Afphaltus, 
or Jews pitch. 
Sulphurs, or Brirrsftones, an unCtious Subftance, 
of various Colours, according to its Purity ; when 
moft fo, it is eafily inflammable and fufible in 
Fire, and calls a ftrong fuffbeating Smell: ..It is 
very frequently mixed with Arfenic y and fome- 
times with metalline Particles, when it is called 
IvLarcafite and Pyrites. The Pyrites Aureus is often 
met with in great Plenty near Banbury in Oxford- 
Jhire ■, but a liner Sort are found at Cleydon , a Village 
juft by. Thefe were formerly ufed inftead of Flints 
