32 McBAIN [1894 Campetti 



1894. A. Campetti. 



Ueber den Einfluss des Losungsmittels auf die Geschwindigkeit der lonen. 

 Beiblatter, j8, 942 (from Nuov. Cim. (3), JJ, 225). 



LiCl water ac.705 



ethjl alcohol ac.71- 



methyl alcohol ac.64- 



AgNOj water ac.518 



ethjl alcohol ac.51- 



methyl alcohol ac.47- 



1894. S. Lussana. 



Einfluss von Magnetismus und Warme auf die Wanderung der lonen. 

 Beiblatter, 18, 364; (from Atti R. 1st. Veneto (7), 4, 13 pp., 1893, Sepab.). 



An extension of the author's work of the year before, with 

 the same apparatus. In solutions of NiSO^, NaCl, KCl, and 

 CuCl, the relative velocity of the cation (i-«) is proportional to 

 the absolute temperature. 



In order to ascertain whether magnetism exerts any notice- 

 able influence on the transport, measurements were made of the 

 rate of motion of the meniscus between acidified solutions of 

 ferrous and cupric sulphates in and out of the magnetic field. 

 The author finds that magnetism probably slightly reduces the 

 rate of the ferrous ion ; the resistance of ferrous sulphate solu- 

 tion is not noticeably affected by a magnetic field whose lines 

 of force are perpendicular to the direction of the current. 



1894. W. C. D. Whetham. 



On the Velocities of the Ions and the Relative lonization-power of Solvents. 

 Phil. Mag., j5, 392. 



For apparatus, method and explanation of the following table, 

 see Whetham, 1892. In these experiments the solutions were 

 solidified with agar agar jelly. In the experiment with sodium 

 acetate one half of the solution was colored red by caustic soda, 

 the other half "decolorized by means of a few drops of dilute 

 acetic acid." A measurement was made of the rate of motion 

 of the red color at the boundary between solutions of ferric 

 chloride and ferric acetate (containing ferric chloride) ; in order 

 to explain his results the author ascribed the color to colloidal 

 ferric hydrate, and adduced a number of conductivity measure- 

 ments and experiments with dialyzed iron, in support of this 

 view. 



