380 Dr. Barton and Mr. Lownds on Reflexion and 



Table II. — Reflected System for Large Condenser. 





Electro meter-Throws, d, 



Electrometer-Throws, 

 d' ', with Condenser at l Q 



Ratio of Throws. - 

 d 





without Condenser on 



beyond Electrometer. 



for each position, viz.: 





Actual 



Interpolated 



h = 



l 2 = 



l 2 = 



l,= 





Throws. 



Means. 

 23 



48 m -X/8. 

 45 



48 m +X/8. 



48 ra -X/8. 



48"'+ X/8. 





23 



1-957 







23 



225 





42 





1-867 





22 



22 



44 





2000 







22 



22 





42 





1-909 





22 



25 



50 





2-000 







28 



25-5 





50 





1-961 





23 



24 



49 





2042 







25 



25 





54 





2-160 





25 



27-5 



56 





2036 







30 



29-5 





58 





1-966 





29 



29 5 



60 





2 031 







30 



29 





57 





1966 





28 



28 



59 





2107 







28 



28 





55 





1-964 





28 



26 



54 





2077 







24 



26 





54 





2-077 





28 



29 



50 





1-721 







30 



28-5 





49 





1-719 





27 



24 5 



50 





2-041 







22 



205 





43 





2-098 





19 



1 













Mean Values 

 Whence J 



of Ratios 





2-002 



1-969 











T inal Value or Mean of '. 



Vleans = 1-986. 



. 



Note. — This set of observa 



tions occupied 2 hours 



45 minutes, during whic 



time the zero crept 22 scale-< 



livisions in the positive 



direction, viz., from —3 



to 



-10. 













Since the amplitude factor of the wave-train reflected from 

 this condenser is almost unity, a bridge of no-resistance, 

 whose reflexion factor is exactly unity, was used as a com- 

 parison and to show the phase-difference between the two 

 curves. Three sets of readings were taken with this bridge, 

 the points and mean curve for which are plotted on fig. 7. 



