Report of the Kew Committee. 131 

 Vibration Observations for Absolute Measure of Horizontal Force. 





Gr. M. T. 



Tempe- 

 rature. 



Time of 

 one 

 Vibration.* 



Log mX. 

 Mean. 



Value 

 of m.f 



1879. 



d. h. in. 



o 



sees. 







October 



27 11 58 a.m. 



55-0 



4-6376 









3 3 p.m. 



58-2 



4-6380 



0-31143 



0-52528 





25 11 45 a.m. 



369 



4-6301 









3 8 p.m. 



41 - 4 



4-6335 



031150 



0-52510 





22 11 39 a.m. 



^95 



4-6316 









2 53 p.m. 



44-3 



4-6292 



0-31192 



052539 



1880. 















27 11 47 a.m. 



21-5 



4-6285 









2 57 p.m. 



23-0 



46298 



0-31103 



052476 





24 11 50 a.m. 



407 



4-6359 









3 8 p.m. 



41'9 



4-6350 



0-31093 



0-52477 



March 



25 11 45 a.m. 



52-8 



4-6393 









3 3 p.m. 



62*4 



4-6403 



0-31111 



0-52486 





27 11 52 a.m. 



506 



4-6105 









3 14 p.m. 



54-5 



4-6405 



0-31067 



0-52432 



May 



24 11 57 a.m. 



635 



4-6423 









3 10 p.m. 



65-7 



4-6418 



0-31117 



0-52452 





29 11 46 a.m. 



75-8 



4-6504 









3 34 p.m. 



79-1 



4-6472 



0-31067 



0-52437 



July 



26 11 53 a.m. 



693 



4-6450 









3 14 p.m. 



70'4 



46132 



031102 



0-52451 





23 12 5 p.m. 



64-2 



4-6483 









3 35 p.m. 



68-7 



4-6467 



0-31018 



0-52447 





28 12 10 p.m. 



621 



4-6176 









3 16 p.m. 



69-1 



4-6493 



0-30996 



0-52418 



* A vibration is a movement of the magnet from a position of maximum displace- 

 ment on one side of the meridian to a corresponding position on the other side, 

 f m = magnetic moment of vibrating magnet. 



