and Sodium with Platinum and Mercury. 165 



case, however, are there more than three observations at a 

 given point, as the aim was rather to supply points wanting in 

 preceding series than to obtain additional values for the same 

 point. 



The column headed D gives the mean of the absolute values 

 of the deviations of the individual observations from their 

 mean, expressed in degrees, and also in microvolts. It will be 











Table I. 

















Potassium-Platinum 









E 



T 

 89-60 



N 

 1 





D 



E 

 460 



T 



48-71 



N 

 2 



D 





840 



o 





o 

 0-21 



2-0 







_ _ . 







- - - 





450 



47-32 



1 









820 



87-52 



2 



0-04 



0-4 



440 



46-73 



2 



o-oi 



o-i 



810 



86-38 



1 









430 



45-58 



1 







800 



85-28 



3 



0-07 



0-7 



420 



44-46 



1 







790 



84-09 



2 



0-11 



1-0 



410 



43-36 



1 







780 



83-00 



1 











400 



42-36 



1 







770 



81-91 



2 



0-03 



0'3 



390 



41-26 



1 







760 



80-72 



1 







380 



40-24 



1 







750 



79-80 



1 











370 



39-56 



1 







740 



78-76 



2 



0-06 



0-6 



360 



3837 



2 



0-07 



0-7 



730 



77-54 



2 



0-08 



0-8 



350 



37-34 



1 







720 



76-54 



2 



0-14 



1-3 



340 



36-24 



2 



0-06 



0-6 



710 



75-47 



2 



o-oi 



o-i 



330 



35-14 



1 







700 



74-40 



3 



0-08 



0-8 



320 



34-34 



1 







690 



73-24 



1 











310 



33-02 



1 







680 



72-02 



1 









300 



32-40 



1 







670 



70-86 



1 



-.. 















660 



69-80 



2 



0-06 



0-6 



270 



28-64 



1 







650 



68-64 



3 



0-16 



1-5 



260 



27-70 



1 







640 



67-55 



2 



0-07 



0-7 













630 



66-52 



1 







200 



21-22 



1 







620 



65-44 



1 

















610 



64-30 



1 







-.- 



170 



17-70 



1 







600 



63-32 



2 



0-08 



0-8 



160 



16-40 



1 







590 



61-92 



1 







... 



150 



15-34 



1 







580 



60-98 



1 









































130 



13-56 



1 







560 



59-20 



3 



o-oo 



o-o 



120 



12-44 



1 







550 



58-14 



2 



0-20 



1-9 













540 



57-19 



2 



0-05 



0-5 



100 



10-18 



1 







530 



56-01 



2 



0-09 



0-8 



90 



9-02 



1 







520 



54-93 



2 



0-09 



0-8 



80 



7-88 



1 







510 



54-12 



1 







.-_ 



70 



6-82 



1 







500 



52-96 



1 

















490 



51-88 



1 

















480 



50-84 



1 

















470 



49-62 



1 

















