10 AßT. 6, — Y. yp:xdo : 



(exp. 1. PL I, Fig. 1), I distinctly found lithium in flowers which 

 were just opening, but never in flower-buds and fruits. In Narcis- 

 sus papyraceus (exp. 24), lithium was found in the uppermost 

 opened flower, but scarcely in lower flower-buds which were 

 covered with a broad bract. In these instances, we see that the 

 injected substance is apt to be carried to the most transpiring 

 part. 



I will now describe the results of the experiment on water- 

 plants. When the terminal portion of Myriophyllum (exp. 35, 

 PI. I, Fig. 7) emerged from the water, lithium when injected 

 in the submerged part of the stem, was detected abundantly in 

 the aerial parts, more especially in the leaves, whilst it was almost 

 absent in the submerged ones. A little lithium was also found 

 in the emerged inflorescence of Potamogeton crispus, but it was 

 not detectable in the submerged leaves (exp. 38). 



Submerged plants, having no transpiring parts, also indicated 

 conduction (Thoday, Skykes, Snell, 12, 13) of injected lithium ; 

 in these plants, however, lithium was usually not detectable in the 

 lamina even in the case of its evident presence in the petiole and 

 midrib, for example, in submerged forms of Nuphar japonicum (exp. 

 29, 32). In the case of slender submerged forms, as Myriophyllum 

 spicatum, I could not detect lithium throughout the body (exp. 34), 

 and after a few days lithium was not found even in the injected 

 part. 



I wished to ascertain whether these submerged forms, which 

 were employed in my experiment, are capable of conducting 

 lithium, or not. Some myriophyllum plants, firmly fixed by means 

 of cotton wool, were inserted into a hole bored in the cork of a 

 small glass-vessel which was filled with 2.5X Li NO3 solution, and 

 kept under water during the experiment. I examined them on 



