BARK OF FOUQUIERIA SPLENDENS 123 



absolute alcohol, was treated with cold water. A deep-red 

 mucilaginous liquid, which became frothy on shaking, was 

 extracted. The amount of solids in this solution, on evapo- 

 rating the liquid and weighing the residue, was found to be 

 19.11 %. In absence of acid or boiling, glucose was identified 

 by Fehling's solution, also by Mulder's test. A gum, separated 

 by absolute alcohol and quantitatively estimated, showed 

 4.8 % of the amount of substances dissolved in water. The 

 powdered residue, after treatment with water, was macer- 

 ated with dilute acid, and gave negative tests for alkaloids. 

 The extraction with caustic soda for identification of albumi- 

 nous substances, followed by chlorine water for the estima- 

 tion of lignin and cellulose, have not as yet been determined. 

 The results of the proximate analysis as so far completed 

 may be stated as follows : 



Moisture 9.4 per cent. 



Petroleum spirit residue 9. 



Ethereal residue 4.52 " 



Alcholic residue 8.6 " 



Water residue 19.11 



Total ash 10.26 " 



Alcholic extract ash 00.15 " 



61.04 " 



The difference of 38.96 % would include pectose, color- 

 ing matter, and cellulose or woody fibre. 



A qualitative ash determination showed the presence of 

 calcium, magnesium, aluminum, potassium, sodium, a trace 

 of iron, sulphates, phosphates, and chlorides. 



Petroleum spirit extracted a solid substance, yellowish- 

 green in color, of sp. gravity .984, melting from 84 C. to 85 

 C., insoluble in water, slightly soluble in boiling 95 % alcohol, 

 soluble in absolute alcohol, cold ether, chloroform, amyl alco- 

 hol, benzole, carbon di-sulphide, oil of turpentine, and linseed 

 oil. It was slightly acted upon by aqueous alkalies, but readily 

 saponified with alcoholic soda. Treating the soap with lead 

 acetate and boiling the precipitate with ether, a yellow crystal- 

 line substance was obtained, melting from 43 C. to 60 C. 



