1878.] using the Balance ivith great delicacy, Sfc. 19 



I. — June 12. — Determination of Value of 1 Scale Division. 



Eider on 

 tlie beam. 



Extremities of 

 three successive 

 oscillations. 



Resting point. 



Means of pre- 

 ceding and 

 successive 



resting points. 



Differences, 

 i.e., deflec- 

 tion due to 

 "3282 mgm. 



L 



280-5 



312-0 

 286-0 



297 -62 







R 



253-1 



284-9 

 257-3 



270-05 



297 -18 



27-13 



L 



306-2 



288-5 

 303-8 



296-75 



268 -68 



28-07 



It 



258-8 



275-0 

 260 -5 



267-32 



294 -81 



27 -49 



L 



285 -8 



298-7 

 288 -3 



292-87 



266 -79 







26-08 



R 



272 -9 



260-6 

 271-0 



266 -27 



292-88 



26-61 



L 



296-1 



290 -0 

 295-5 



292 -90 







Mean R— L=27*08 divisions. 

 .'. 1 divisions 9J^^Z== 0-01212 milligramme. 



