236 POPULAR ECONOMIC BOTANY. 



a foot in length, through which there is a hole half an 

 inch in diameter. It has been conjectured that this is from 

 Garcinia Cockinchinensis. 



2. Lump Gamboge, in masses, having the appearance of 

 a hardened yellow paste in lumps of one or two pounds' 

 weight ; this is known to be produced from Hebradendron 

 cambogioides. 



3. Gamboge in Tears. — This is in drops called tears, said 

 to be produced from the same species as the last, but the 

 truth of this is much disputed. 



Besides its use as a colouring material, gamboge is much 

 used in medicine as a drastic purgative. 



We now take leave of the articles employed in tanning 

 and dyeing ; but before we proceed further it would be well 

 to take a retrospective glance at the materials which have 

 been described. 



Rough and unattractive to the eye, they nevertheless 

 afford the means of rendering more durable and beautiful 

 those materials of which our useful and decorative apparel 

 is manufactured. Crude and unpromising they all are to 

 the uninitiated eye, and their value is only shown when 

 the inventive genius of man is brought to bear upon them. 



