20 



Mr. W. Galbraith on the Experiments 



Variation of 



Oscillations in 



24 hours. 



Correction T. 



Differences, i Correction II. 



•0000.5525,0- 

 •00006322 0" 

 •0000752-t 0' 

 •00008830 0' 

 •000 102 HO' 

 •00011756 0' 

 00013376|0 

 •00015100^0 

 •00016928 

 •00018S6liO 

 •00020898 

 •000230 10 1 

 •00025286 1 

 00027637[o 

 00030092:0 

 00032652|o 

 00035316 

 00038085 

 00040958 

 00043936,0 

 0004-70190 

 ■00050206 1 

 •00053498|0 

 00056894 

 ■C0060395;0 



000010970 

 00001202 

 ■.';0001306 0• 

 0000141l|0• 

 •00001515 0' 

 •00001620 0' 

 •00001724 0' 

 •000018280 

 000019330 

 •00002037 

 •000021 42 jO 

 •000022460 

 •00002351 10 

 •00002455 

 •00002560;0 

 •00002664 jo 

 1-00002769,0 

 00002873 

 ■00002978 !o 

 ■00003083 ;0 

 ■00003187 

 ■00003292 

 •00003396,0 



00003501 



-00003605 

 00064000'0-00003710 

 00067710,0-00003814 



•00003918 



-000715240 

 •000754420 

 -00079464 

 -00083590 



00004022 

 00004126 



•00000013 

 •00000015 

 ■00000018 

 •00000021 

 •00000025 

 •00000029 

 •00000033 

 •00000038 

 •00000043 

 •00000048 

 •00000053 

 •00000058 

 •00000064 

 ■00000070 

 ■00000077 

 ■00000084 

 ■00000090 

 •00000098 

 •00000105 

 •00000113 

 •00000121 

 ■00000129 

 ■00000138 

 ■00000147 

 •00000156 

 •00000165 

 ■00000175 

 ■00000184 

 •00000194 

 •00000204 

 •00000215 



In this table, column first contains the difference of the 

 number of oscillations made by the experimental pendulum at 

 two different places; — column second contains the correction 

 of the formula, or its deviation from the result deduced from 

 the method of obtaining the length of the pendidum by the 

 squares of the number of oscillations when the length at the 

 first place of observation is 39 inches ; and is always to be 

 subtracted; — column third contains the differences to obtain 

 proportional jiarts readily ; — and column fourth contains the 



correction 



