ON THE DETERMINATION OF TRANSATLANTIC LONGITUDES 



455 



The following table contains the differences of longitude and the transmission time 

 between Duxbury and Brest, not corrected for personal equation. 



Date. 



Jan. 5 



a 



a 



it 



u 



Jan. 8 



U it 



it it 



a 44 



u it 



a a 



Jan. 9 



« 



44 

 u 



a 



a 



44 



« 



u 



Jan. 10 



a 



a 



a 



u 



tt 



a 

 a 

 a 



a 



3 



Jan. 14 



a 



tt 



« 



a 



a 



a 

 a 



a 



Jan. 



a 



m 



44 

 44 



44 



44 



17 



44 

 44 

 44 



« 



44 



44 



Sets 



1 



2 



Mean 



1 

 2 

 3 

 4 



5 

 6 



Mean 



1 

 2 



3 

 4 



5 

 6 



Mean 



1 

 2 

 3 

 4 

 5 

 6 



Mean 



1 

 2 

 3 

 4 

 5 

 6 



1 

 2 



8 



1 



5 

 6 



Mean 



Class II. 



X 



4 



m 



24 



8 



42.910 

 42.888 

 42.874 

 42.875 

 42.896 

 42.916 



42.893 



a 



42.891 



42.889 

 42.850 

 42.886 

 42.923 

 42.934 



42.895 



42.512 

 42.494 

 42.520 

 42.496 

 42.523 

 42.546 



42.515 



S 



42.002 

 42.024 

 42.002 

 42.991 

 42.018 

 42.979 



42.003 



42.870 

 42.873 

 42.880 

 42.922 

 42.904 

 42.900 



42.892 





x 



1.223 

 1.227 

 1.187 

 1.167 

 1.103 

 1.140 



1.174 



1.052 



1.090 



1.098 

 1.105 

 1.133 

 1.119 



1.100 



1.132 



1.126 



1.147 

 1.114 



1.116 



1.139 



1.129 



l 



1.083 

 1.107 

 1.039 

 1.114 

 1.079 

 1.087 



1.085 



1.064 

 1.064 

 1.060 

 1.057 

 1.065 

 1.070 



1.063 



Class III. 



X 



h m g 



4 24 42.731 



42.762 



42.746 



42.852 

 42.781 

 42.968 

 42.950 



42.838 

 42.888 



42.879 



42.854 



42.825 



42.844 

 42.840 

 42.895 

 42.889 



41858 



42.503 

 42.479 

 42.509 

 42.479 

 42.502 

 42.515 



42.498 



42.115 



42.070 

 42.067 

 42.063 

 42.071 

 42.01 1 



42.06& 



42.998 

 42.998 

 42.994 

 42.903 

 42.989 

 42.982 



42.977 



x 



\. 1 35 

 1.088 



1.111 



1.089 

 1.12 



1.145 



1.140 

 1.151 



1.116 



1.127 



1.055 



1.05.5 

 1.01 



1 .062 

 1.001 

 1.031 



1.044 



1.052 

 1.079 

 1.045 

 1.057 

 1.054 

 1 .050 



1.056 



1.168 



1.132 



1.087 

 1.073 

 1.128 

 1.098 



1.114 



1.131 

 1.251 

 1.195 

 1.107 

 1.146 

 1.174 



1.167 





