AT THE OBSERVATORY AT PARAMATTA. 



15 



(3 Crucis. 



Each of these observations separately gives the points of the division of the 

 mural circle answering to the horizon, so that the latitude may be derived from 

 every observation made at those periods on stars of a known declination. 



The southern solstice, December 1827, observed alternately direct and by 

 reflection with the repeating circle, whereof the abstract is given page 39, gives 

 for the 



o / // 



Mean Zenith Distance of the Tropic of Capricorn 10 21 4.2 



Mean Obliquity of the Ecliptic 23 27 43.3 



Latitude 33 48 47.5 



Summing up, therefore, the latitudes found by observations alternately direct 

 and by reflection, we have 



latitude. 



O / II 



By Solstice, December 1827, with Repeating Circle 33 48 47.50 



Near the same Solstice, six observations with Mural Circle „ „ 52.10 



Solstice, December 1828, with Repeating Circle ,. „ 47.81 



Ditto Ditto Mural Circle 49.35 



