134 



MR. RUMKERS OBSERVATIONS 

 6 Argus. (Ann. Var. — 18".702.) 



tl Circini. (Ann. Var. — 14".753.) 



Superior Culmination. 



1827. 



Microscopes. 



Inferior Culmination. 



1827. 



Barom. 



Microscopes. 



II. 



I 



IV. 



Aug. 1 

 2 



inches. 

 30.10 



30.05 



30.12 



O / // 



26 54 33.6 

 „ „ 25.0 

 ., ,. 28.0 



54 38.7 

 „ 34.7 

 ,, 35.5 



54 42 

 .. 42 

 „ 37.7 



54 43 

 ., 42 

 „ 43.7 



July 30 



Aug. 1 



2 



inches. 

 29.815 



30.08 



30.07 



54 



32.5 



32.7 



333 42 47.8 

 „ 43 16.3 

 „ 43 17.4 



42 51.2 42 57.3 



43 25.0 43 27.0 

 43 26.0 43 23.7 



42 57.7 



43 24.0 

 43 24.0 



Aug. 2 ... Mean 

 Refract, and Reduct 



Superior Culminat 

 Inferior Culminat... 



Half Diff. S. P. D. 



26 54 28.9 

 -26.0 



54 36.3 

 26.0 



54 40.6 

 26.0 



54 42.9 

 26.0 



Aug. 1 ... Mean . 

 Refract and Reduct. 



333 43 7.2 



-7 24.8 



43 14.1 

 7 24.8 



26 54 2.9 

 333 35 42.4 



54 10.3 

 35 49.3 



54 14.6 

 35 51.2 



54 16.9 

 35 50.4 



333 35 42.4 



35 49.3 



43 16.0 



7 24.8 



43 15.2 



7 24.8 



35 51.2 



35 50.4 



26 39 10.2 39 10.5 



39 11.7 



39 13.2 



Mean S. P. D. of >j Circini, Jan. 1, 1828 26° 39' ll".4 by 6 Observ. 



