52 McBAIN [190 1 Steele 



Two determinations with MgSO^ in 2 m solution by the an- 

 alytical (Hittorf) method are published without data; n = .732 

 and .744. 



The third column in the table below gives the indicators em- 

 ployed. *'Most of the experiments were carried out at 14*^ 

 C." No allowance was made for cataphoresis. 



1901. A. Wiesler. 



Beitriige zur Kenntnis der Metaphosphate. Zeit. anorg. Chera., ^S, 190. 



Apparatus same as used by Jahn, capacity of anode 200 c.c. ; 

 Zn anode, Hg cathode ; no diaphragms ; method of calculation 

 correct. 



NaPOj 0.039m o.65g Ag i percent 2ex 3.590^:0 



igo2. R. Abegg und W. Gaus. 



Beitriige zur Theorie der direkten Bestimmungsmethode von lonenbeweglich- 

 keiten. Zeit. phys. Chem., 40, 737. 



The apparatus and method were the same in principle as those 

 used by Steele, 1901 and 1902, but modified to measure the 

 cataphoresis. 



NaCl 3 percent LiCI, NaCjHjOj 7ex ac.6o6 varied potential fall. 



KCl 0.5m.'' " " lex ac. 508 corrected for cataphoresis. 



igo2. A. Coehn. 



Ein Beitrag zur Oxoniumtheorie. Ber. jj, III. 2673. 



The author showed that when a solution of 20 percent hydro- 

 chloric acid and 20 percent di-methyl-pyrone is placed between 

 electrode solutions of 10-20 percent hydrochloric acid, that the 



