146 



MR. RUMKER'S observations 



|3 Crucis. (Ann. Var. — 19."755.)— (Continued.) 



Superior Culmination. 



Inferior Culmination. 



1828. 



MicrosoopeB, 



II. 



1828. 



Microscopes. 



II. 



III. 



IV. 



Oct. 6 

 7 

 8 



16 



20 



21 



25 



27 



Nov. 1 



2 



3 



7 



11 



12 



17 



27 



Dec. 13 



14 



15 



inches, 

 30.16 



30.15 



29.68 



29.93 



29.75 



29.80 



29.82 



29.85 



29.58 



29.70 



29.94 



29.84 



29.55 



29.57 



29.63 



30.00 



30.10 



29.95 



29.83 



56 



75 



80.5 



66.6 



82.2 



62.8 



68 



73.5 



73 



66 



68.7 



77 



73.5 



75 



67.5 



79 



75 



72 



84 



31 29 

 „ 29 

 „ 29 



„ 29 



„ 29 



„ 29 



„ 29 



„ 30 



„ 29 



„ 29 



„ 29 



,, 30 



„ 29 



„ 29 



„ 29 



„ 29 



„ 29 



52 



53 



51.2 



50.0 



51.2 



45.0 



53.3 



55.0 



57.3 



1.2 

 56.0 

 50.0 

 55.0 



0.0 

 54.5 

 51.4 

 57.7 

 53.6 

 52.0 



Not. 5 ... Mean .., 

 Refract. — Reduct. 



Superior Culminat, 

 Inferior Culminat... 



Half Diff. S. P. D. 



31 29 53.6 

 -14.8 



31 29 38.8 

 328 59 2.6 



29 59.5 

 29 56.0 

 29 57.3 

 29 58.3 

 29 52.0 

 29 47.0 

 29 58.4 

 29 58.0 



29 57.6 



30 5.0 

 29 59.5 

 29 54.0 

 29 57.1 

 29 56.5 



29 55.5 



30 3.8 

 30 1.6 

 30 54.3 

 30 56.7 



30 0.0 

 29 59.0 

 29 53.4 

 29 57.0 

 29 51.7 

 29 49.3 



29 58.3 



30 1.0 

 30 1.7 

 30 1.0 

 30 0.2 



29 52.0 



30 0.7 



29 59 



30 1.0 



29 53.8 



30 5J 

 30 51.0 

 30 55.5 



29 54j 



„ 56.5 



„ 55.0 



„ 53 



„ 55 



„ 47.0 



„ 57.0 



„ 55 



„ 55.5 



„ 56.3 



„ 53.0 



„ 51.0 



„ 55.3 



„ 59.5 



„ 58.0 



„ 53.5 



„ 51.3 



„ 54.0 



29 57.3 

 14.8 



29 57.5 

 14.8 



29 54.7 

 14.8 



29 42.5 

 59 15.8 



29 42.7 

 59 2.3 



29 39.9 

 59 5.0 



31 15 18.1 



15 13.3 



15 20.2 



15 17.5 



Oct. 



inches, 

 6 30.04 



24: 30.16 



27 

 Nov. 3 

 4 

 13 

 15 

 17 

 20 

 26 

 27 



29.78 

 29.85 

 29.90 

 29.60 

 29.55 

 29.50 

 29.50 

 29.85 

 29.90 



48.5 



53 



61 



52 



59 



59 



63 



66 



70 



80 



67 



329 14 19.2 



„ 14 9.0 



„ 13 44.0 



„ 13 52.0 



„ 13 49.5 



„ 13 45.4 



„ 13 26.0 



„ 13 21.0 



„ 13 51.5 



„ 12 49.0 



„ 13 23.7 



14 37.5 

 14 22.0 



13 58.0 



14 6.0 

 14 1.3 

 14 0.2 

 13 45.0 

 13 33.0 

 13 59.0 

 13 1.0 

 13 33.0 



14 25.0 

 14 12.0 

 13 49.0 

 13 58.2 

 13 54.7 

 13 55.0 

 13 33.0 

 13 27.0 

 13 54.4 



12 53.0 



13 26.0 



14 24.0 

 14 13.0 

 13 49.0 

 13 56.0 

 13 47.0 

 13 46.5 

 13 28.0 

 13 24.4 

 13 53.0 



12 51.0 



13 25.6 



Nov. 8... Mean.. 

 Refract. — Reduct. 



.329 13 41.0 

 -14 38.4 



13 54.2 



14 38.4 



13 40.7 



14 38.4 



13 43.4 



14 38.4 



328 59 2.6 



59 15.8 



59 2.3 



59 5.0 



Mean Inside Temperature 66°.7. 

 Mean of 4 Microscopes 31° 15' 17".27by30 Observ. 



Mean S. P. D. of |3 Crucis, Jan. 1, 1828 31° 15' 15".3 by 53 Observ. 



a Eridani. (Ann. Var. + 18".462.) 



Superior Culmination. 



1822. 



Microscopes. 



II. 



III. 



Inferior Culmination. 



1822. 



Barom. 



Microscopes. 



II. 



III. 



May 2 



5 



9 



10 



inches. 

 30.09 



30.28 



29.91 



30.11 



§4 

 66.5 

 59.3 

 53 



31 51 62.7 



„ „ 49.3 



„ „ 47.0 



„ „ 45.6 



52 47.2 

 „ 48.5 

 „ 10.5 

 „ 11.8 



51 65 

 „ 51.7 

 » 54.2 

 „ 51.0 



/ // 



51 39.7 



„ 40.0 



„ 40.0 



May 9 

 II 



Inches. 

 29.86 



30.17 



60.5 



47.7 



328 24 49.5 

 328 25 23.0 



25 1.3 



25 46.5 



24 65.3 



25 38.0 



24 39.5 

 24 57.5 



May 10... Mean ... 

 Refract, and Reduct. 



328 26 6.2 

 -18 13.9 



25 23.9 

 18 13.9 



26 16.6 

 18 13.9 



24 48.5 

 18 13.9 



May 6. 5. ..Mean. 

 Refract and Reduct. 



Superior Culminat. 

 Inferior Culminat.., 



Half Diff. S. P. D. 



31 51 48.6 

 + 1 7.2 



62 29.5 

 1 7.2 



51 53.0 

 1 7.2 



51 39.5 

 1 7.3 



328 6 52.3 



7 10.0 



7 2.7 



6 34.6 



31 52 55.8 

 328 6 52.3 



53 36.7 

 7 10.0 



53 0.2 



7 2.7 



52 46.8 

 6 34.6 



31 53 1.7 



53 13.3 



52 58.7 



53 6.1 



Mean Inside Temperature 48°. 

 Mean of 4 Microscopes 31° 53' 4".97 by 6 Observ. 



