36 



RECORD AND RESULTS OP 



The mean time intervals, expressed in seconds, are followed by the corresponding 

 number of vibrations performed in the intervals from which, by proportion, the 

 number of vibrations N performed in a day are computed. The corrections for arc, 

 temperature, and atmospheric pressure were computed by the formulae given above. 



Clock intervals. 



Correction 



Mean time 



Number 



Corres. No. 



Corrections for 



N 



for rate. 



intervals. 



of vibr's. 



in a day. 



Arc. 



Temp. 



Atm. pr. 



Vibr's right 







Face 



4. 











2'' 08° 50^95 



—21.^31 



1109^58 



1110 



86404.11 



+ 1.39 



+ 9.41 



.00 



86415.51 



3 02 23.62 



—30.23 



10913.39 



10914 



86404.80 



+ 0.91 



+ 9.29 



" 



15.00 



2 53 02.11 



—28.68 



10353.43 



10354 



86404.14 



+ 0.30 



+ 9.11 



" 



14.15 



Yibr's left 



















2 09 11.13 



—21.42 



1129.11 



1130 



86403.24 



+ 1.39 



+ 9.41 



" 



86414.10 



8 02 31.66 



—88.28 



10921.38 



10928 



86405.92 



+ 0.91 



+ 9.29 



" 



16.12 



2 52 55.94 

 Yibr's right 



—28.61 



10341.21 



10348 

 Face 



86406.10 

 2. 



+ 0.30 



+ 9.11 



Mean 



15.51 



86415.01 



2 36 20.81 



—25.92 



9354.89 



9356 



86410.26 



+ 1.66 



+ 8.51 



—.03 



86420.46 



3 14 34.15 



—32.26 



11642.49 



11644 



86411.20 



+ 1.29 



+ 8.15 



" 



21.21 



3 54 08.96 



—38.83 



14010.13 



14012 



86411.54 



+ 0.91 



+ 9.11 



" 



21.53 



Vibr's left 



















2 36 10.91 



—25.89 



9345.02 



9346 



86410.68 



+ 1.62 



+ 8.51 



—.03 



86420 84 



3 14 28.82 



—32.25 



11636.51 



11638 



86410.62 



+ 1.21 



+ 8.15 



" 



20.61 



3 53 51.08 



—88.80 



13998.23 



14000 



86411.83 



+ 0.91 



+ 9.11 



Mean 



21.82 

 86421.08 



Vibr's right 







Face 



1. 











4 49 49.88 



—48.06 



11341.82 



11344 



86410.86 



+ 1.42 



+ 10.24 



—.04 



86422.48 



4 50 25.99 



■ —48.16 



11311.83 



11380 



86410.18 



+ 1.31 



+ 10.28 



" 



22.38 



4 51 52.11 



—48.39 



11463.18 



11466 



86410.98 



+ 1.11 



+ 10.19 



" 



22.30 



Vibr's left 



















4 50 03.86 



—48.10 



11355.16 



11358 



86411.16 



+ 1.42 



+ 10.24 



" 



86422.18 



4 50 33.95 



—48.18 



11385.11 



11388 



86411.06 



+ 1.31 



+ 10.28 



" 



22.61 



4 51 52.19 



—48.39 



11463.80 



11466 



86410.90 



+ 1.11 



+ 10.19 



Mean 



22.22 



86422.45 



Vibr's right 







Face 



3. 











3 23 28.10 



—33.14 



12114.96 



12116 



86401.38 



+ 1.10 



+ 9.38 



—.04 



86411.82 



4 22 01.62 



—43.44 



15618.18 



15680 



86410.02 



+ 0.68 



+ 9.34 



" 



20.00 



Vibr's left 



















3 23 26.56 



—33.14 



12112.82 



12114 



86408.36 



+ 1.10 



+ 9.38 



" 



86418.80 



4 21 55.66 



—43.42 



15012.24 



15014 



86409.68 



+ 0.68 



+ 9.34 





19.66 



86419.01 



We have therefore the following residting number of vibrations performed at 

 Cambridge in a mean solar day, the temperature of the pendulum being 50° Fah., 

 and the atmospheric pressure 29.8 inches (with the mercury at the temperature of 

 freezing water), 



