October 2nd, ipo6.] Proceedings. 



111 



In his original description of Eucommia, Prof. Oliver drew 

 attention to the extraordinary abundance of " elastic gum in all 

 the younger tissues, excepting perhaps the wood proper — in the 

 bark, the leaves and petioles and pericarp ; any of these snapped 



Fig. 2. — Portion of leaf enlarged to show clusters 

 of threads occurring at veins. 



Fig. i.— Actual size. 



across, and the parts drawn asunder, exhibit the silvery sheen of 

 innumerable threads of gum." (See Figs. 1 and 2.) 



When two years later some spirit material of this interesting 

 plant was sent home by Dr. Henry, I was able to make an 



