1878.] using the Balance with great delicacy, fyc. 17 



Determination of n. 



Position 

 of mass. 



Extremities of 

 oscillations. 



Kesting 

 point. # 



Mean of pre- 

 ceding and 

 succeeding 



resting points. 



Differences 

 =n. 



In 



216 -8 



208-1 

 215 -9 



212-22 







Out 



210- 9 

 216-1 



211- 



213-52 



212-27 



1-25 



In 



213-9 



210-8 

 213-8 



212-32 



213-61 



1-29 



Out 



212 -7 



214-6 

 212-9 



213 -70 



212 -41 



1-29 



In 



211 '5 



213-6 

 211-3 



212 -50 



213 -78 



1 -28 



Out 



215- 9 

 211 -8 



216- 



213-87 



212 -60 



1-27 



In 



210-2 



215-0 

 210-6 



212-70 



213-93 



1-23 



Out 



216-7 



211 -6 

 216-1 



214 -00 



212-73 



1-27 



In 



209 -9 



218-4 

 210-4 



212 -77 



214-08 



1-31 



Out 



217 -0 



211 -4 

 216 -9 



214-17 



212 -98 



1-19 



In 



209- 8 

 216-2 



210- 6 



213-20 







Y0L. XXYIII. 



C 



