536 Mr. G. U. Yule on the Passage of Electric 



Table I. 



40 centim. 



55 centim. 



60 centim. 



80 centim. 



46 



114 



6-8 



30 



4-9 



114 



64 



3-0 



5-0 



110 



65 



2-8 



4-2 



11-9 



64 



2-7 



43 



11-5 



61 



23 



3-9 



11-2 



64 



2-5 



4-0 



11-6 



59 



2-7 



4-3 



114 



57 



2-5 



4-6 



104 



5-8 



20 



44 



11-2 



66 



21 



4-5 



104 



5-8 



2-7 



46 



10-0 



6-8 



2-7 



The readings for each thickness are grouped separately, 

 but it will be understood that they were taken in pairs alter- 

 nately as described above. 



Fiof. 3. 



Centimetres 



Transmission- curves (!) for water. 



„ „ (2) for ZnS0 4 solution. 



» 7) (3) for „ „ 



