Mr. Macie’s Account , &c* 
309 
Hy drab ad Tabajloeer. (N° 3,) 
§ L (A) This, in its general appearance, very much refem- 
bled fragments of that variety of calcedony which is known to 
mineralogies by the name of Cacbolong. Some pieces were 
quite opaque, and abfolutely white ; but others pofleffed a 
fmall degree of tranfparency, and had a bluifh caft. The 
latter, held before a lighted candle, appeared very pellucid, 
and of a flame colour. 
The pieces were of various fizes ; the largeft of them 
did not exceed two or three tenths of an inch cubic. Their 
fhape was quite irregular; fome of them bore impreffions 
of the inner part of the bamboo againft which they were 
formed. 
(B) ThisTabafheer could not be broken by preffure between 
the fingers ; but by the teeth it was eafily reduced to powder. 
On firft chewing it felt gritty, but foon ground to impalpable 
particles. 
(C) Applied to the tongue, it adhered to it by capillary 
att ration. 
(D) It had a difagreeable earthy tafte, fomething like that 
of magnefia. 
(E) No light was produced either by cutting it with a knife, 
or by rubbing two pieces of it together, in the dark ; but a bit 
of this fubftance, being laid on a hot iron, foon appeared 
furrounded with a feeble luminous aureole. By being made 
red hot, it was deprived of this property of fhining when gently 
heated ; but recovered it again, on being kept for two months. 
(F) Examined with the microfcope, it did not appear dif- 
ferent from what it does to the naked eye. 
Vol. LX XXI. C c c 
(G) A 
