ON THE DETERMINATION 



1"1>ES 



403 



switched out of the circuit while the signals are passing, and then introduced 



or two minutes betwee 



th 



different sets of signals, so as to graduate the chrono- 



graph sheet into seconds. In this way, the exact ti 



signal would be ascertained. As the transmission 



sensible, the difference between the recorded times of sending the signal and of noting 



it gives the retardation in noting cable-signals. 



ne of tonditi j and of /ioti/,g . eh 



time in tin ■ • experiments is in- 



Nuruber. 



9 

 10 

 12 

 12 

 11 

 11 

 12 

 12 

 12 

 12 

 12 

 12 

 12 

 12 

 12 

 11 



184 



January 24 • 



January 25. 



Janiiar 10. 



Number. 



Sums. 



Means. 



Number. 



Sums. 



Means. 



Number. 



Sum*. 



M 



10 

 10 



• 



9 

 8 

 10 

 7 

 6 

 6 

 9 



10 

 10 

 10 



3.54 

 3.21 



3.06 



2.97 



3.55 



2.41 



1.95 



1.93 



3.80 



3.54 • 



3.69 



3.67 



S .354 



0.321 



0.340 



0.371 



0.355 



0.344 



0.325' 



0.322 



0.422 



0.354 



0.369 



0.367 



10 

 10 

 10 

 10 

 10 

 10 

 10 

 10 

 10 

 10 

 10 

 10 

 10 

 10 

 10 

 10 

 9 



3.39 

 3.24 

 3.52 

 3.37 

 3.17 

 3.33 

 3.30 

 3.28 

 3.51 

 3.22 

 3.54 

 3.59 

 3.59 

 3.72 

 3.18 

 3.65 



2.96 



0.339 

 0.324 



0.352 

 0.337 

 0.317 

 0.333 

 0.330 

 0.328 

 0.351 



0.322 

 0.354 



0.359 

 0.359 

 0.372 

 0.318 

 0.365 

 0.329 



10 



10 



10 

 10 



10 



10 



10 



10 



10 



8 



8 



;;.n 



3.11 

 3.38 

 3.16 

 .'{.29 



2.: 



2.99 

 3.19 

 2.33 



2.25 



< 511 



0.8 H 



<> r, 



0.295 

 0.275 

 0.299 



0. 19 



0.291 



0.281 



105 



37.32 



o".355 

 ±.005 



169 



57.56 



o".341 

 ±.003 



106 



32..". 4 



0J07 



1 ±.004 



February 8 



February 9 



February 12. 



Sums. 



Means. 



2.81 

 3.35 

 3.71 

 3.49 

 3.72 

 3.54 

 3.93 

 3.72 

 3.66 

 3.66 

 3.56 

 3.93 

 3.47 

 3.53 

 3.41 

 3.17 



56.66 



0.312 

 0.335 

 0.309 

 0.291 

 0.338 

 0.322 



0.327 

 0.310 

 0.305 

 0.305 

 0.297 

 0.328 

 0.289 

 0.294 

 0.284 

 0.288 



Number. 





8 .308 

 ±.003 



5 

 9 



7 

 12 



12 



12 

 12 

 12 

 12 

 12 



105 



2.19 



3.58 

 3.69 



4.11 

 3.68 



3.51 



3.66 



3.74 



Means. 



o".340 

 0.291 

 0.313 



0.298 

 0.307 

 0.343 

 0.307 

 0.292 

 0.305 



0.312 



Number 



12 

 12 

 12 

 12 

 12 

 12 

 12 

 12 

 12 



Sums. 



3.71 

 3.30 



3.11 



3.3 



3.22 



3..i8 

 3.1 

 3.1 

 3.13 



Mean*. 



0.309 



1. 27 •'> 



n.287 



0.268 

 n.282 

 0.265 

 0.2<'.2 

 0.261 



32.48 



o".309 

 ±.004 





108 



29.89 



0.277 



±.003 



