370 



PINUS PINASTER. 



the door of the chamber being opened, the lamp- 

 black is swept out and packed in small barrelsc 

 Tar is sometimes substituted for resinous straw, 



PINUS LEMONIANA. 



and lamp'black is sometimes obtained by burning- 

 resin in a kind of lamp furnished with a chimney, 

 which is surrounded by a flannel, and which re- 

 tains the soot. It was from this mode of obtain- 



