73 



1. SUMAC FROM GEEAEDSTOWJST, WEST VIRGIjVIA. 



Tannin 20.80 



Vegetable fibre 79.20 



100.00 



2. SAMPLE FEOM GEORGETOWN, D. C. 



Tannin 18.25 



Vegetable fibre 81.75 



100.00 



3. SAMPLE FROM EREDERICKSBUEG, YA. 



Tannin 23.50 



Vegetable fibre. 76.50 



lOO.OO 



TWO S^MPL'ES PROM E. T. KNOX& BEOS., PREDERICKSBUEG, 

 VIEGIKIA — AVERAGE OF BOTH. 



Tannin 28.20 



Vegetable fibre , 71.80 



100.00 



These sumacs are of the R. copalina and typhina species, 

 which also grow abundantly in Texas. 



These analyses show a great richness in tannin, although 

 some of the samples were not of the first qualitj^, yet they 

 show that we can compete in the foreign markets with the 

 best suAiacs. 



For the purpose of comparison, I give some analyses of 

 European sumacs, as w ade by European chemists : 



Sumac, first quality, tannin 16.50 



Sumac, second quality, tannin 13.00 



Gauhe gives us an average of six analyses of European 

 sumac from the countries, on the borders of the Meditera- 

 nean, 13 per cent, of tannin. 



Fine samples of Palermo sumac yield from 22 to 24 per 

 cent of tannin. 



