22 



REPORT ON 



Local mean time ..... 



Mean of chronometer times 

 Chronometer slow of local mean time 

 Longitude west ...... 



Chronometer slow of Greenwich mean time 



o h i6 m 



2 7 s . 7 



° 3 



39- 6 



O 12 



48.1 



4 43 



35-3 



4 5 6 



23-4 



Double Altitudes of the Sun for Time, observed near Valparaiso, Chile, Ma7-ch 2d, 1866. 



5° w 



i5 s -5 



5° 



39-5 



5 1 



3 



51 



5i-5 



52 



52 



53 



i5-5 



53 



39-5 



54 



3° 



Ex. 



ther. 



Refraction 



Parallax 



62 



0' 



61 



5° 





40 





20 



62 







61 



5° 





40 



Index correction. 



20 



2Q 



359° 



10' 



40" 



45 

 40 



o° 



15' 



0" 



5 

 10 



359 



10 



41.7 







iS 



5-o 



Correction = + 17' 6". 6 



At. ther. 



67° 

 = — 9 2 "-4 

 = + 7-4 



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 



Bar. 



Sun's declination — 



53 



Latitude 



~33 

 6i° 



3 h 



4 

 3 

 o 



4 

 4 



1.4 



42 



30 .0 



44 s - 3 

 17.9 

 2.2 

 15.8 

 46.4 



3i 

 17.4 



Double Altitudes of the Sun for Time, observed in Valparaiso, Chile, March 29th, 1866. 



36" 



37 



38 



40 



40 



4i 



55 9 

 40 



23 



45-5 

 28.5 



73 



73 



30 

 15 



2O 



20 



Index correction. 



359° 



10' 20" 

 5° 

 45 



o° 



14' 5°" 

 45 

 55 



359 



10 38-3 







14 50.C 



Ex. ther. 



Refraction 



Parallax 



7i u 

 = -75"- 1 

 = + 6-9 



At. ther. 69 s 



Correction = -f 17' 15". t 

 Bar. 30.23 inches. 



Sun's declination 

 Latitude 



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 



+ 3° 

 — 33 



73 c 



15 

 43 m 



4 

 48 

 39 



9 

 46 



56 



38" 



47 



o".o 



52 s .O 

 47-0 



39-° 

 12.2 

 26.8 



45-7 

 12.5 



Double Altitudes of the Sun for Time, observed in Valparaiso, Chile, April jth, 1866, 



3 6» 



2 6 s . s 



37 



16-5 



38 



9 



40 



i-5 



40 



53 



4i 



44-5 



77 u 



3° 





45 



78 







77 



3° 





45 



Index correction. 



7S 



2© 



2© 



359° 



10' 



5°" 

 5° 

 So 



0° 15' 



10" 

 10 

 10 



359 



10 



50.0 



15 



10. 



Correction =4-17' o".o 



