16 



ART. 6. — Y. YEXDO : 



0.03 c. cn<. of the solutions ^^'as injected in each case. 



The above table shows that a 10^ solution has been con- 

 ducted to the farthest distance, while a 6% solution was not so 

 conspicuous, and a 1% solution the least. 



5. CoNDrCTING PATH OF IXJECTED SOLUTIONS. 



Applying the aniline violet solution to Vicia Faha, I observed 

 that the dye was conducted only through the xylem portion, i.e. 

 the lignified walls of the xylem elements were deeply coloured and 

 contents of the xylem parenchyma cells more or less coloured 

 (PI. II, Fig. 2). In the rhizome of Menianthes trifoliata, I also 

 observed that eosin was conducted most easily through xylem por- 

 tions, especially vessels (PL II, Fig. 3). However, in most cases, 

 phloem elements as well as parenchymatous tissues were penetrated 

 in various degrees by injected substances. I observed in the ex- 



