AA 
understood in England. It may be chosen so as 10 be cut 
easily into any form, and the Chinese use some varieties - 
for carving figures and very delicate fret-work. The softest 
might serve this purpose as well as the hardest sorts, and 
either might be hardened afterwards by heat. 
The upper kind comes from the Lizard Point in Corn- 
wall, and is found in veins in the Serpentine Rock. The 
lower piece is extraordinary for the strata of colours, which 
perhaps are as vivid, and distinct, as will ever be found in 
this substance. I have another specimen, by favour of my 
friend the Rev. H. Davies, with Magnetic Iron in it ina 
small quantity, 
