20 



REPORT ON 



Double Altitudes of the Sun for Time, observed at Rio Janeiro, Brazil, January <)th, 1 866. 



Index correction. 



Correction = + 16' 45". o 



77 Bar. 29.94 inches. 



Sun's declination 22 6' 24". 6 

 Latitude 22 54 5. 



Local apparent time 



Equation of time 



Local mean time 



Mean of chronometer times 



Chronometer slo 



Longitude west 



Doubt f Altitudes of the Sun for Time, absented at Rat Island, harbot of Rio Janeiro, 



January gth, 1866. 



Double Altitudes of the Sun for Time, observed at Monte Video, Uruguay, January i8//4, 1866. 



Index correction. 



