358 Report of the Kew Committee. 



Vibration Observations for Absolute Measure of Horizontal Force. 



Month. 



Gt. M. T. 



Tempe- 

 rature. 



Time of 

 one 

 Vibration.* 



Log mX.. 

 Mean. 



Value 

 of m.f 



1881. 



d. h. m. 



50-8 



sees. 









26 11 54 a.m. 



46483 









3 13 p.m. 



519 



4-6465 



0-30915 



0-52212 



November ........ 



25 11 51a.m. 



543 



4-6510 









3 4 p.m. 



54-1 



4-6502 



0-30883 



0-52177 





23 11 53 a.m. 



30-2 



4-6438 









2 50 p.m. 



364 



4-6448 



0-30876 



0-52165 



1882. 















26 11 50 a.m. 



331 



4-6427 









3 3 p.m. 



360 



4-6425 



0-30918 



0-52184 





28 11 50 a.m. 



47-9 



4-6468 









3 11p.m. 



519 



4-6499 



0-30903 



0-52149 

 • 





24 11 55 a.m. 



563 



46536 









3 34 p.m. 



566 



4-6495 



0-30880 



0-52172 





25 12 4 p.m. 



576 



46540 









3 36 p.m. ; 



52-7 



4-6485 



0-30877 



0-52184 





26 11 59 a.m. 



68-2 



4-6557 









3 27 p.m. 



683 



4-6548 



0-30885 



0-52145 





27 11 48 a.m. 



715 



4-6579 









3 13 p.m. 



74-8 



4-6578 



0-30866 



0-52176 





26 11 54 a.m. 



67-4 



4-6535 









3 12 p.m. 



70-1 



46535 



0-30918 



052166 





30 12 14 p.m. 



65-5 



4-6551 









3 24 p.m. 



696 



4-6526 



0-30904 



0-52145 





27 11 49 a.m. 



59-7 



46550 









3 19 p.m. 



60-1 



4-6513 



0-30870 



0-52133 



* 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. 



