348 Observations of Vibeations for the Absolute Horizontal Intensity, 1846, 



Date. 



Feb. 16 



April 14 





N. End of Magnet moving I 



J. 





N. End of 



Magi 



■JET MOVING W. 





BiFILAR. 





No. 



Time 



No. 



Time 



Time of 



No. 



Time 



No. 



Time 



Time of 



Time 



Read- 



Thftr- 



of 



of 



of 



of 



one 



of 



of 



of 



of 



one 



of 



ing 



mome- 



Vib. 



Transit. 



Vib. 



Transit. 



Vib. 



Vib. 



Transit. 



Vib. 



Transit. 



Vib. 



Obs. 



Cor. 



ter. 





ii. m. s. 





li. m. s. 



s. 





m. s. 





m. s. 



j;_ 



h. m. 



.Sc. Div. 











3 47 5-7 



70 



4 5 13-0 



15-533 



1 



47 21-5 



71 



5 29-0 



15-536 



3 48 



550-2 



46-3 



6 



48 39-1 



76 



6 46-2 



530 



5 



48 23-6 



75 



6 31-2 



537 



53 



552-3 





10 



49 41-2 



80 



7 48-3 



530 



11 



49 57-1 



81 



8 4-2 



530 



58 



551-6 





16 



51 14-5 



86 



9 21-4 



527 



15 



50 59-2 



85 



9 6-5 



533 



4 3 



555-4 



20 



52 16-7 



90 



10 23-6 



527 



21 



52 32-4 



91 



10 39-6 



531 



8 



557-0 





26 



53 50-0 



96 



11 56-6 



523 



25 



53 34-6 



95 



11 41-7 



530 



13 



557-7 





30 



54 52-0 



100 



12 58-8 



526 



31 



55 7-8 



101 



13 150 



531 



18 



552-5 





36 



56 25-0 



106 



14 31-7 



524 



35 



56 9-9 



105 



14 17-0 



530 



23 



549-2 





40 



57 27-3 



110 



15 33-9 



523 



41 



57 43-2 



111 



15 500 



526 









46 



59 0-6 



116 



17 7-0 



520 



45 



58 45-3 



115 



16 52-1 



526 



Mean 



553-2 





50 



4 2-7 



120 



18 90 



519 



51 



18-6 



121 



18 25-2 



523 









56 



1 35-8 



126 



19 42-2 



520 



55 



1 20-6 



125 



19 27-3 



524 









60 



2 37-8 



130 



20 44-4 



523 



61 



2 53-8 



131 



21 0-7 



527 









66 



4 11-0 



136 



22 17-7 



524 



65 



3 560 



135 



22 2-7 



524 









Mean observed time of one vibration ; 



: 15^-5270. Semi-arc of vibration, commencing 8°, ending 2J°. Temperature 

 of magnet, 48°-7. Rate of clock — l^'T 





 6 

 10 

 16 

 20 

 26 

 30 

 36 

 40 

 46 

 50 

 56 



7 38 

 40 

 41 

 43 

 44 

 45 

 46 

 48 

 49 

 50 

 51 

 53 



56-4 



60 



30-0 



66 



32-2 



70 



5-6 



76 



7-8 



80 



41-2 



86 



43-4 



90 



16-8 



96 



19-0 



100 



52-3 



106 



54-5 



110 



27-8 



116 



7 54 

 56 

 57 

 58 

 59 



8 1 

 2 

 3 

 4 

 6 

 7 

 9 



30-0 



3-4 



5-4 



38-8 



40-9 



14-2 



16-3 



49-6 



51-7 



24-9 



27-1 



0-4 



15-560 



1 



557 



5 



553 



11 



553 



15 



552 



21 



550 



25 



548 



31 



547 



35 



545 



41 



543 



45 



543 



51 



543 



56 



39 

 40 

 41 

 42 

 44 

 45 

 47 

 48 

 49 

 50 

 52 

 53 



12-8 



61 



15-1 



65 



47-6 



71 



51-0 



75 



24-4 



81 



26-7 



85 



0-1 



91 



2-5 



95 



35-7 



101 



38-0 



105 



11-5 



111 



13-7 



115 



54 



55 



57 



58 



59 



1 



2 



3 



5 



6 



7 



47-2 



15-573 



1 

 7 43 



565-9 



49-5 



573 



48 



563-7 



21-6 



567 



53 



562-3 



25-0 



567 



58 



560-0 



58-4 



567 



8 3 



562-2 



0-6 



565 



9 



559-4 



34-0 



565 







36-2 



562 



Mean 



562-3 



9-6 



565 







11-7 



562 







45-1 



560 







47-4 



562 







54-4 



Mean observed time of one vibration ^^ 15s-5576. Semi-arc of vibration, commencing 7J°, ending 1J°. Temperature 



of magnet, 56°-2. 



