86 



MR. RUMKER'S OBSERVATIONS 



3 y Octantis. (Ann. Var. + 20".0] .) 



Superior Culmination. 



1827. 



Barom. 



Microscopes. 



III. 



IV. 



Inferior Culmination. 



1827. 



Barom. 



Microscopes. 



11. 



IV. 



June 17 

 23 

 26 



inches. 

 30.24 



29.84 



30.05 



5 27 

 „ 21.8 

 ,. 27.4 



5 31.3 

 „ 32.0 

 „ 33.0 



5 30.0 

 „ 29.8 

 „28.0 



5 41.0 

 „ 44.0 

 „ 45 



June 18 

 23 

 27 



inches. 

 30.23 



29.83 



30.01 



46 



54.5 



50 



3o3 27 32.0 

 „ „ 32.7 

 „ „ 31.0 



27 35.5 

 „ 34.9 

 „ 36.1 



27 27.0 

 „ 30.0 

 „ 31.1 



27 36.4 

 „ 36.3 

 „ 37.0 



June 21 .5. ..Mean... 

 Refract, and Reduct. 



Superior Culminat. 

 Inferior Culminat... 



Half Diff. S. P. D. 



7 5 25.4 

 -1 22.60 



5 31.3 

 1 22.7 



5 29.3 

 1 22.7 



7 4 2.8 

 353 25 53.1 



4 8.6 

 25 56.7 



4 6.6 

 25 50.7 



6 49 4.8 



49 6.0 



49 8.0 



5 43.3 

 1 22.7 



June22 ...Mean.. 

 Refract, and Reduct. 



353 27 31.9 

 -1 38.80 



27 35.5 

 1 38.8 



27 29.4 

 1 38.7 



27 36.6 

 1 38.8 



4 20.6 

 25 57.8 



353 25 53.1 



25 56.7 I 25 50.7 



25 57.8 



49 11.4 



Mean of 4 Microscopes 6° 49^ 7".55 by 6 Obserr. 



1828. 



June 10 

 11 

 13 

 16 

 17 

 18 

 19 

 20 

 22 

 26 



inches, 

 29.71 



29.94 



30.00 



30.00 



30.13 



30.32 



30.28 



30.33 



30.21 



30..30 



35.5 



33 



30 



38 



36 



38.2 



36 



35 



54.5 



45 



June 17 .2. ..Mean... 

 Refract, and Reduct. 



Superior Culminat. 

 Inferior Culminat.. 



Half Diff. S. P. J). 



Microscopes. 



3 52 



4 1.5 

 4 5.7 

 3 55.0 



3 58 



4 1.0 

 4 2.8 

 4 4.0 



3 58.7 



4 0.5 



3 59.92 

 -1 41.78 



7 

 353 



2 18.14 

 24 5.8 



6 49 6.17 49 8.8 



II. 



4 6.0 

 „ 6.5 



„ 12.0 

 „ 4.5 

 „ 7.5 

 ,, 3.8 



„ 10.5 

 „ 9.3 

 „ 4.5 

 ,, 5 



4 6.96 

 1 41.78 



2 25.18 

 24 7.6 



4 2.4 

 4 4.4 

 4 4.3 



3 57.7 



4 2.2 

 4 1.7 

 4 5.2 

 4 1.0 



3 58.7 



4 1.0 



4 1.9 



1 41.8 



2 20.1 

 24 5.7 



IV. 



4 6.5 



„ 11.2 



„ 15.0 

 „ 5.8 



„ 11.7 



„ 84 



„ 11.0 



„ 10.0 

 „ 9.0 



„ 11.0 



4 9.96 

 1 41.78 



2 28.18 

 24 7.5 



49 7.2 49 19.35 



1828. 



June 11 

 16 

 17 

 18 

 19 

 20 

 26 



July 1 

 2 



Barom. 



inches, 

 29.79 



29.81 



30.03 



30.20 



30.34 



30.27 



30.22 



29.75 



29.84 



50 



55 



51.5 



49.5 



49.5 



52 



June 21 ... Mean ... 

 Refract, and Reduct. 



Microscopes. 



353 25 27.7 

 „ » 24.3 

 » „ 25.2 

 30 

 30 



,. „ 26.3 

 ,. ,. 20 

 « )» 2j 

 ,, „ 31.7 





353 25 26.7 

 -1 20.9 



353 24 5.8 



II. 



/ // 



25 30 



„ 28.5 



„ 26 



„ 33 



„ 33.7 



„ 30.5 



„ 19.3 



„ 26.2 



„ 30 



25 28.6 

 -1 21.0 



24 7.6 



25 32 



„ 27.0 



„ 20.5 



„ 29 



„ 31.0 



„ 27 



,, 17.2 



„ 25.2 



„ 31.0 



25 26.6 

 -1 20.9 



24 5.7 



IV. 



25 35 



„ 28.2 



„ 27.5 



„ 31.0 



„ 30.7 



„ 28 



„ 18.2 



„ 26.1 



„ 32.3 



25 28.5 

 -1 21.0 



24 7.5 



Mean of 4 Microscopes 6° 49' 8".13 by 19 Observ. 



Mean S. P. D. of 3 y Octantis 6° 49' 7".99 by 25 Observ. 



