22 



REPORT ON 



Local mean time 



Mean of chronometer times 



Chronometer slow of local mean time 



Longitude west . 



Chronometer slow of Greenwich mean time 



io h i6 m 27". 7 



10 3 39.6 



O 12 48.1 



4 43 35-3 



4 5 6 2 3-4 



Double Altitudes of the Sun for Time, observed near Valparaiso, Chile, March 2t/, 1866. 



Index correction. 



At. ther. 



Bar. 

 Sun's declination 



53" 



Latitude 



4 

 4 



Mean of observed double altitudes 



Local apparent time 



Equation of time 



Local mean time . . . . 

 Mean of chronometer times 

 Chronometer slow of local mean time 



Longitude west 



Chronometer slow of Greenwich mean time 



Double Altitudes of the Sun for Time, observed in Valparaiso, Chile, March 2g/h, 1866. 



36" 55' 



37 40 



38 23 

 40 1.5 



40 45-5 



41 28.5 



Ex. ther. 71 

 Refraction = 

 Parallax = 



73" 



73 



Index correction. 



2 O 



At. ther. 



-75-1 

 + 6-9 



69 Bar. 30. 23 inches. 



Sun's declination + 3 31' 38" 



Latitude 



33 



47 



Mean of observed double altitudes .... 



Local apparent time 



Equation of time ....... 



Local mean time 



Mean of chronometer times 



Chronometer slow of local mean time. 

 Longitude west ..... 

 Chronometer slow of Greenwich mean time 



Double Altitudes of the Sun for Time, absented in Valparaiso, Chile, April yth, 1866. 



36- 



37 



38 



40 



40 



26'. 5 

 16.5 



9 



i-5 

 53 

 44-5 



77 



78 

 77 



78 



30' 



45 

 o 



3 



45 

 o 



Index correction. 



