Frictional Electricity. 



403 



Table III. 



Glass and Copper 

 (positive electricity produced on glass) 



Width of specimen = 1*55 cms. 



wxicr 6 . 



Q,i. 



Qr 



Q 3 . 



4-035 



•002 



•026 



•047 



8069 



•021 



•028 



•096 



14121 



•066 



•099 



•14 



24-208 



•076 



•14 



•26 



40346 



•15 



•20 



•32 



53459 



•24 



•37 



•49 



75-649 



•35 



•42 



•51 



99-857 



•43 



•43 



•53 



125074 



•43 



•51 





156342 



•47 



•49 





202740 



•46 



•52 





235-018 



•51 



•54 





294528 



•54 



•oo 





Table IV. 



Glass and Slate 

 (positive electricity produced on glass). 



Width of specimen = 1*&5 cms. 



WxlO" 6 . 



Qi. 



Q a . 



Q,. 



4035 



•071 



•14 



•29 



8-069 



•12 



•33 



•43 



14-121 



•21 



•43 



•64 



24208 



•29 



•68 



•81 



40346 



•52 



•77 



•93 



53459 



•62 



•87 



•90 



75-649 



•70 



•85 



•88 



99-857 



•83 



•95 





125074 



•94 



•93 





156-342 



•85 



•99 





202-740 



•85 



•93 





235-01S 



•86 



•90 





294528 



•98 



•99 





Some of the results are also shown in the curves, fi< 

 and 3 (p. 4G4). 



