On thc State af tjiquids in Capillarv? Tubcs 

 under Influence of 61ectrical Äir^Currents 



Selim Lemström. 



Introduction. 



During the summer of 1898 some experiments were 

 made on the state of water in capillary tubes under the 

 influence of an electric current, generated by means of an 

 el. influence-machine, the one pole of vvhich was connected 

 with a point above the capillary tube, the other with the 

 earth, with" which the water beneath the cap. tube was also 

 in conducting connexion. These experiments gave the re- 

 sult that the liquid, under the influence of the current, clim- 

 bed along the walls of the tube forming dröps in the upper 

 end of it, 



The experiments were continued during the spring and 

 autumn of 1900 and this year; they have given the results, 

 wiiich will be exposed here ^). 



The experimental installation was as follows: 



A is a glass-vessel (3 cm in diameter and 6 cm high) 

 (fig.), halffilled with water and by means of a slip of tin-leaf put 

 in connexion with a zinc-plate beneath. In the vessel stånds 

 a cap. tube aa' sustained by an insulated support å; B is 

 a tube of ebonite through which goes a copper wire ending 

 on one side in. the steel-point s and on the other side in 

 the pole of the machine. The ebonite tube is fixed to an 



^) I was assisted in these experiments by the students R. Ben- 

 gelsdorfl" and V. J. Laine; the latter having a long time assisted me 

 in the quantitative measurements. 



