Observations of Vibration, 2ml of Octobér L876. 

 Station Christiania; Lat. 59° 54/ 43", Long. 10° 43' 37". 

 Chronometer. Error at Station = 0' 42" 1 38' Daily. Bate (s) = 4.'r> Accl. 

 Magnet (A) suspended. 



Effect of 90° of Torsion = 2.26 Div. = 4.'29. One Div. of Scale = L'9. 

 At Commencement | Mean Time | 1' 50™ p. m. | Semiarc \ 76' | Temp. of J 



At End 



( at Station | 2 



j of Vib. ) 22.8 (' Magnet ( 



.li 



* 1 ;:: 



= 55.°0 

 = 55. 



T -T„ 



1 — 



86400 

 -q(t.- 



86400 

 s 



si 141 k 1 



Ml' 



' 16 



' 16 

 H 

 F 



-*) 



m, 

 X 



'16 



T- .= T,- J 1 



H 



1 + F — q (t -t) + « 



u Log. 



rn, , 

 v Dog. 



1" 



in. 



= o 00088 Log 



= 0.99995 



= O.OOOOI 



= 0.9.9994 



= 1.00079 

 = 0.00282 



0.99997 



= 0.00088 



' = 0.99885 



= 6.29003 



= 9-347I4 



= 6.94289 



H 

 F" 



Mean (1) 



,. (2) = 7 16.48 



T„= 4.'3649 



q(t — f) 



7™ 16.50 



X f 



in, \ 



Log. 



. Log. 

 T Loe 



mX - 



T- 



0.63997 



9-99997 



0.63994 



2 



T, 2 Log. = 1.27988 



Loe. = 



Observation of Torsion. 



T 2 Log. 



.t-K Log. 



-r-K 



mX = T „ Log. 



ml -r 



==- Log. 

 X 



sr '"' sr 'i t 



ni X — , = A - Dog. 



X' = 3.4249 Log. 



//,'- Log. 



9.99950 



1.27938 

 1.69705 



0.41767 



9-34837 



1.06930 



053465 

 9.76604 



m' — 0.76387 Log. = 9.88302 



90° = 2.26 



4. 29 



Observer Carl Witte. 



