AT THE OBSERVATORY AT PARAMATTA. 

 Reduction. 



11 



Direct. 



Dec.25 



10 



Mean of Four 

 Microscopes, 



07 4 43.1 

 „ 10 23J 

 „ 22 48.9 



Refr. 

 Paral. 



7.93 



8.6 



9.6 



Scmidia- 

 meter. 



le' 17''67 

 „ 17.85 

 „ 17.5 



Reduction to 

 Solstice. 



Corr. for South Pol. Dis. 

 Sun'g la- tance per Mi. 

 titudc . cro8cope. 



o / // 



1 29.78 



71 0.84 



1 19 50.85 



-0.36 

 +0.05 

 +0.30 



Mean., 



66 47 3.22 

 „ 47 3.46 

 „ 46 50.45 



66 46 59.04 



By Reflection. 



Date 



Jan. 1 

 2 

 4 



Moan of Four 

 Microscopes. 



•22% 26 56.4 

 „ 64 54.8 

 „ U 22.3 



Rcfr. 

 Paral. 



8.75 



8.2 



9.0 



Semidia- 

 meter. 



/ // 

 16 17.8 



16 17.8 



16 17.75 



Reduction 

 to Solstice. 



21 23.26 

 26 0.3 

 36 45.9 



Corr. for 

 Sun's 

 Lat. 



-0.61 



-0.70 

 -0.78 



Mean. , 



South Pol. Dis. 



tance per Mi. 



croscope. 



228 4' 28. 1 

 .. „ 28.4 

 „ „ 16.17 



226 4 24.22 



Half Difference = true Altitude = 79 38 42.59 of Tropic. 

 Apparent Obliquity 23 27 34.7 



Latitude 33 48 52.1 



2. Southern Solstice^ December 1828, observed alternately direct and by Re- 

 • j.c. inflection, with the Mural Circle. 



1828. 



Dec. 13 

 14 

 15 

 16 

 17 

 18 

 19 

 20 

 21 



Direct, 



By Reflection. 



South Polar Distance of Tropic from the Zero of the ?f '^f '; 

 Circle per Microscope. : i'arallel 



applied. 



I. 



II. 



O / // 



66 46 44.7 



„ „ 31.2 



„ „ 40.03 



42.2 



„ „ 38.7 



46 59.7 

 „ 53.0 

 „ 49.33 



47.4 



„ 48.6 



III. 



46 53.7 

 „ 41.5 

 „ 41.03 



„ 37.2 

 ' * '43.2 



IV. 



46 56.5 I 

 „ 45.2 I 

 „ 52.03 



40.4 



45.6 



8.8 



8.2 

 7.6 

 7.5 

 8.1 

 8.1 

 7.4 

 7.8 



South Polar Distance of Tropic from th< 

 Zero of the Circle per Microscope. 



226 4 9.4 



„ 4.72 

 „ 8.3 



„ 8.6 



II. 



4 16.6 



4 14.3 



,, 11.8 



» 9.3 



III. 



4 24.1 



» 16.9 



„ 19.0 



„ 14.8 



IV. 



4 15.1 



» 7.8 



„ 13.6 



„ 12.0 



Mean 



66 46 39.31: 46 51.6 

 226 4 8.4 i 4 13.0 



46 43.3 



4 18.7 



46 47.94 

 4 12.1 ! 



226 4 8.4 4 13.0 



4 I8.7 



4 12.1 



i Differ. 



79 33 44.55 38 40.7 



38 47.7 



38 42.08 



Half Difference by Mean of 4 Microscopes = true Alt. 79° 38' 43".75 

 Apparent Obliquity =23 27 33.1 



Latitude 33 48 49.35 



Remarks. — ^The same Reductions to Solstice and Corr. for Sun's Latitude as 

 above, have been applied to the following, but no Correction for Polar point. 



c2 



^0 



