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XV. An Account of Amber grips , by Dr. Schwediawer ; 
prejented by Sir Jofeph Banks, P. R. S. 
Read February 13, 1783. 
A MBERGRISE, or properly {peaking Grey Amber , is a 
folid, opaque, inflammable lubdance, of a white grey, * 
fometimes of a blackifla colour, which melted or inflamed yields 
a peculiar fmell, agreeaole to mod perfons, but difagreeable to 
others. 
As it occurs in the (hops, it varies in its confidence* accord- 
ing as it has been expofed to a warmer or colder air. It is a 
hard brittle fubdance, yet not fo hard as to admit a polifla; nor 
has it, like luccinum, a polifhed appearance or tranfparency. 
On feraping it with a knife into powder, part of it adheres to 
the cold deel like wax; fo it does alfo to the teeth, if madi- 
cated ; it yields alio the impredion of the nail ; it has no pecu- 
liar but rather an earthy tade when chewed. 
It has in its natural date a peculiar drong fmell. The older 
it grows the more it feems to become agreeable. This fmell 
is rendered more fenfible by rubbing it with the fingers, or by 
burning or melting it. 
It 
