plates of Lead laid upon a Veflel of very ftrong Vinegar, 
what falls into the Vinegar is taken out^and dryed in the 
Sun: and in the 35 BookjCfup. 6. he fays it was made at 
of burnt M-iirr^-y&/;/quenchM 111 Vinegar, 
2. is a kinj of mipropcr Q/x of X^^. 
3- Gutt^ Gamhdiy or C m^hdia^ the in fpiffa ted Juice of a 
Flmt^ not well known, it.comes fronm both the JW/^j. Some 
think it the. Juice oi Euphcrhiim\ oxhQvsScammof^y^ ovTithi- 
md \ others Ridnm ; others refer it to the greater Catapu-^ 
tiaj EfuU, or the Flowers of the Indian Ricinm ^ and will 
have it coloured with Turmerick : as ScrodcT. 
4. Oker a kind of Natural Earth, there are two forts there- 
of, the one Native formerly brought out of Attica , now 
from Dacia and Hungariay and from many places oiEngUndy 
efpecially in the Forreft of Dean : The other a factitious fiib- 
fiance of Lead burnt and quench'd in Vinegar. In Pliny $ 
time it was made of Rubrua, or Reddle burnt. 
5. Orpimenty a fat intidimm^ble Mineral y juftly rianked a- 
mongft P^/TtJ^i for its extream Corrofive quality. Pliny ik^s 
it was dug up in Syri^i on the Surface of the Earth ; and that 
the Emperor Caligula had hopes of getting Gold out of it ; 
wh^>refore he caufed 14 Pounds of it to be tryed, which af- 
forded him very good Gold^ hnt in fb fmall a Proportion, 
that he loft by the tryal. 
6. Vmberis a Native Earth. 
7. Red'leady a Colour unknown to the ^^i^/V;^^/,made of Li- 
tharge or burnt Lead by a Reverberatory Calcination;, or of 
Cerufe put in a Platter over the Fire, which muft be conti« 
nually Itirred till it has acquired a Red-lead colour. Dr. Charl- 
ton deFoff, 
8. Burnt Oker is the common yellow Oker burnt in the 
oppn fire. 
9. Cinnabar or Vermillion, lliere are two forts ; Native 
or the Minium of the Ancients, which is the Mineral that 
vields Qmckfilver j whereof, and of Sulphnr it chiefly confifts, 
D it 
