ON THE BED VARIETY OF PITAYO BARK. 
49 
JPitaycrisis , collected by Cross last August. They were collected from trees 
growing on lofty ridges nearPopayan, where it sometimes freezes,—temperature 
30° to 60° Fahrenheit.” 
Cliinchona Pitayensis, red variety. 
The bark was at once recognized as the superior quality of Pitayo bark, which 
bears a high value in this market, as well as in Paris, equal in fact to that of 
Calisaya. From a small portion of that given to me, gathered by Cross, I 
obtained the surprising amount of 8’6 per cent, of alkaloid soluble in ether, and 
the portion which formed crystalline salts indicated like results with those men¬ 
tioned by Dr, Jameson, 
