Thin Metal Partition in a Voltameter. 193 



82 gold. Long time readings. Gas developed. 



I 0152 0-081 0-053 0-032 0-016 0-008 



x 3-05 2-96 2-98 2-86 2-79 2-72 



#3 gold. Gas developed. 



I 0-184 0-093 0-061 0-037 0-019 0-009 0-004 0-002 



x 2-57 2-42 200 1-41 0-83 0-37 0-15 007 



x ...... 2-29 2-28 2-11 1-41 083 0-37 0-15 0-07 



#5 gold. No visible gas. 



1 0-15 0-08 0-53 0-032 0016 0-008 



x 1-76 1-02 0-68 0-42 0'22 0-105 



Same, reversed order without opening the circuit. 

 x 1-73 099 0-65 0-41 0-22 0-105 



#6 gold. No visible gas. . 



1 0-1485 0079 0-052 0032 0-016 0-008 



x 0-71 0-38 0-25 0-15 0-06 0*03 



Same, reversed order. 

 x 0-71 0-38 0-25 0-15 0-06 0-03 



#7 gold. No gas. Circuit closed 2*5 hours. 

 I 015. No polarization. 



#2 aluminium. No gas. No polarization. 



83 platinum. No gas. No polarization. 



This solution, having been used a good deal with gold partitions, gave the 

 following values for thick platinum and gilded the negative side of the 

 partition : — 



81 platinum. Gas developed. Plate gilded. 



1 0-175 0-093 0-061 0037 0-0185 0009 0-004 0002 



x 2-52 2-48 2-42 2-39 2*28 2-17 2-08 1-98 



Same, reversed order of current. 

 x 2-59 2-52 2-44 2-39 2-28 218 2-09 1-98 



#2 platinum. No visible gas. 



x 0-89 0-53 0-36 0-26 0-15 0-108 0085 0-07 



Same, reversed order. 



x 0-89 0-53 0-35 0-25 0-15 0-108 0-085 007 



81 silver. No gas. 



x 0-87 0-46 042 0-26 0-20 0-12 009 008 



Same, reversed order. Oxidized and very irregular. 



x 0-53 0-28 0-31 0-15 015 012 0-096 0-08 



81 aluminium too much oxidized and too irregular to measure. 



Fresh solution of H 2 S0 4 ; 30 per cent. ; «?=1"1 ohms. 



81 platinum. Circuit closed four hours. 



1 0-168 0-091 0-062 0-036 0-018 0-009 0-004 0-002 



x 2-87 2-72 2-65 2-55 2-39 2-23 207 1-99 



82 platinum. 



I 0176 0'092 



x 113 0-58 



