90 Report of the Keiv Committee. 



Observations of Deflection for Absolute Measure of Horizontal Force. 



Month. 



G. M. T. 



Distances 



OI 



Centres of 

 Magnets. 



Tempe- 

 rature. 



Obsei'ved 

 Deflection. 



Log _ • 

 ° X 

 Mean. 



Observer. 



1877. 



d. 



h. 



in. 



foot. 



o 





o 





a 









October 



26 



12 



34P.M. 



1-0 



55 



"5 



15 



38 



6 







F. 







2 



38 „ 



13 

 10 



58 



8 



7 

 15 



3 

 37 



8 

 3 



Q 



V 



±Ol4o 



5 J 



}} 











13 







7 



2 



42 











27 



12 



31 p.m 



10 



54 



6 



15 



37 



46 







F. 







2 



18 „ 



1*3 

 1-0 



55 



•3 



7 

 15 



3 

 37 



5 

 26 



9 



13131 



» 











13 







7 



2 



45 











21 



12 



35 p.m. 



10 



43 



6 



15 



38 



37 







F. 







2 



30 „ 



13 

 10 



45 



■4 



7 

 15 



3 

 38 



18 

 4 



9 



'13093 





1878. 









1.-3 







7 



3 



8 











28 



12 



41 P.M. 



10 



45 



3 



15 



39 



26 







Y. 





2 



34 „ 



13 

 l'O 



43 



■6 



7 

 15 



3 



3iJ 



41 



23 



A 

 J 



101QO 



loioy 



" 











1*3 







7 



3 



37 











26 



12 



16 P.M 



10 



50 



9 



15 



37 



26 







F. 





2 



13 „ 



13 

 10 



52 



•7 



7 

 15 



2 

 37 



47 

 14 



n 

 9 



'13092 



» 











13 







7 



2 



37 











27 



12 



18 P.M. 



1 



46 



•6 



15 



39 



24 







F. 







2 



26 „ 



13 

 1*0 



52 



•2 



7 

 15 



3 

 37 



45 

 55 



9 



13139 



» 











13 







7 



2 



54 











27 



12 



39 p.m. 



10 



63 



1 



15 



33 



32 







F. 





2 



25 „ 



13 



J. u 



62 



■7 



7 

 15 



2 



35 



12 



42 



9 



•13080 













1-3 







7 



2 



6 











27 



12 



40 p.m. 



1-0 



66 



■8 



15 



34 



23 







F. 





2 



35 „ 



13 

 i -n 



j_ u 



68 



•2 



7 

 15 



1 



34 



32 

 12 



9 



13068 













13 







7 



1 



21 











26 



12 



42 p M 



10 



87 



•4 



15 



31 



55 







F. 







2 



39 „ 



13 

 l'O 



89 



•7 



7 

 15 





 31 



16 



2 



9 



13086 













13 







6 



59 



52 









July 



29 



12 



42 p.m. 



10 



72 



■8 



15 



34 



7 







F. 





2 



37 „ 



1:3 



l'O 



72 



'5 



7 

 15 



1 



33 



22 

 26 



9 



•13083 













13 







7 



1 



8 











28 



12 



27 p.m. 



1-0 



71 



•3 



15 



33 



52 







F. 





2 



39 „ 



13 

 10 



70 



•6 



7 

 15 



1 



33 



10 

 16 



9 



•13058 



» 











1-3 







7 



1 



2 











24 



12 



33 p.m 



10 



57 



5 



15 



36 



1 







F. 





2 



37 „ 



1-3 

 10 



60 



1 



7 

 15 



2 

 34 



16 

 47 



9 



•13060 













13 







7 



1 



42 









