( 242 ) 



place sought for errors in the measurements, which migiit be occa- 

 sioned by the not sharply defined edge of the quartz thread being 



TABLE XI (string 14, Plate A 132). 



in thou- 

 sandths of 

 a second. 



7 



8 



10 



12 



14 



16 

 18 

 20 

 S2 

 24 



26 

 28 

 30 

 32 

 34 



36 

 38 

 40 

 42 

 44 



46 

 48 

 50 

 52 

 56 



60 

 70 



1.66i 

 1.872 

 2.069 

 2 215 

 2.290 

 2 332 



(2 332) 



2.332 

 2.204 

 2.087 

 1.881 

 1.753 



1.613 

 1.511 

 1.418 



1.280 

 1.179 



1.111 

 1.032 

 0.942 

 0.848 

 0.821 



0.751 

 0.676 

 0.635 

 0.563 

 0.504 



0.456 

 0.423 

 0.382 

 0.350 

 0.304 



0.254 

 0.151 



18.8 

 21.2 

 23.4 

 25.0 

 25.9 

 26.4 



(26.4) 



26.4 

 25.0 

 23.6 

 21.3 

 19.8 



18.3 

 17.1 

 16.0 

 14.5 

 13.3 



12.6 



11.7 



10.7 



9.6 



9.3 



8.5 

 7.7 

 7.2 

 6.4 

 5.7 



5.2 

 4.8 

 4.3 

 4.0 

 3.4 



2.9 



1.7 



in milli- 

 metres. 

 Measured. 



in milli- 

 metres. 

 Calculated 



Difference 

 between the 



measured 

 and calcu- 

 lated values 

 of q 



in millim. 



32.7 

 31.9 

 31.0 

 30.0 

 29.2 

 28.0 

 26.9 



(26.4) 



25.9 

 25.0 

 23.0 

 21.1 

 19.5 



17.9 

 16.5 

 15.1 

 13.9 



12.8 



11.7 



10.7 



9.9 



9.0 



8.2 



7.5 

 6.9 

 6.3 

 5.8 

 5.2 



4.8 

 4.4 

 4.0 

 3.7 

 3.1 



2.6 

 1.7 



27.0 

 29.9 

 30.8 

 29.7 

 28.4 

 26.4 



(26.4) 



26.4 

 24.5 

 23.0 

 20.6 

 19.2 



17.9 

 16.7 

 15.5 

 14.0 

 13.0 



12.3 

 11.4 



4.9 

 1.1 

 0.8 

 0.5 

 0.4 

 5 



(0) 



0.5 



0.5 







0.5 



0.3 







0.2 



0.4 



0.1 



0.2 



0.0 

 7 

 0.8 

 0.6 

 1.1 



1.0 

 0.8 

 0.9 

 0.6 

 0.5 



0.4 

 0.4 

 0.3 

 0.3 

 0.3 



3 

 



