140 Amber> uncertain how produced . 
they afford little or no Ground on which to 
raife a Conjecture : however, the general 
Figures round the Edge have I think a Sort 
of mineral Character, and the Feather-like 
Bodies tend a little towards the Shootings of 
feme of the Vitriols. The curved Angle Lines 
J'f which appear like Drawings with a Pen, 
are fo peculiar to this Salt, that, for Want of 
finding them elfewhere, one can form no 
Judgment from whence they derive their 
Form ; and the Cafe is the lame as to thofe 
Shootings which refemble naked Trees. I 
fhall not pretend therefore to infer any Thing 
from thefe Figures : but, before I intirely 
quit the Subject, (hall prefent a few Queries 
to the Confideration of my curious Readers. 
^uere 1. Does not Amber, when analy¬ 
sed, afford a conliderable Quantity of 0 / 7 , in 
Smell, Colour, Inflammability, and Confid¬ 
ence like the White, or rather Amber-co¬ 
loured Naptha, a Proportion of Acid Salt , 
and a Caput Mortuum or earthy Subftance ? 
and if fo, does it not feem probable, that 
fiich a bituminous Oil fixt by an acid Salt, 
with more or lefs of an earthy Subftance, is 
really the Compofttion of Amber * ? 
* In the Diftillation of Amber there frit rifes a thin lim¬ 
pid Oil, then an Oil yellow and tranfparent, which is fuc- 
ceeded by a volatile acid Salt and a red Oil fomewhat clou¬ 
dy : a grofs fat Oil like Turpentine comes over next, and 
lai of all a thick black Matter. At the Bottom remains a 
ImaM Quantity of a Caput Mortuum. Vid. Boerbaa've’ s Ana- 
Jyfis of Amber, Vol. lid of his Chemiftry, Procefs 87. Hart¬ 
man obtained an Ounce of volatile Salt from 1 lb. of while 
Amber, whereas 1 lb. of yellow afforded fcarce a Dram. 
