275 



Professor Bache alluded to a case of strabismus, which seemed to 

 him to favour a suggestion thrown out by Dr. Hays, that defective 

 vision in the inverted or everted eye, might be owing to stretching of 

 the optic nerve. In this case the eye became everted ; and simul- 

 taneously, vision with it was impaired. Ultimately, indeed, the sight 

 of both eyes was lost. 



Professor Bache communicated the following observations 

 made by Mr. Riimker, Director of the Observatory of Ham- 

 burg, on the second comet of Galle. 



Longitude of the Observatory of Hamburg, 39m. 54s. E. of Green- 

 wich. 



Date. 





























Mean Time at 



Apparent Alt of 



Apparent Declinat. 



£ t 



1840. 





Hamburg. 



Comet in Time. 



of Comet in Ascen. 



s g 



3 .Q 

























£0 







h 



m 



s 



h 



m 



s 



o 









January 



29 



9 



55 



23.89 



21 



17 



51.990 



62 



18 



59.15 



13 



J? 



30 



8 



11 



23.07 



21 



31 



31.545 



61 



55 



28.19 



15 



February 



2 



15 



47 



45.98 



22 



16 



53.236 



59 



55 



35.53 



15 



j. 



3 



8 



58 



46.24 



22 



25 



51.671 



59 



23 



38.57 



12 



)> 



4 



12 



45 



54.87 



22 



39 



52.004 



58 



28 



7.73 



4 



j. 



8 



8 



38 



19.30 



23 



19 



35.128 



55 



1 



12.81 



14 





9 



7 



59 



24.03 



23 



28 



23.452 



54 



4 



3.05 



11 





11 



8 



30 



24.43 



23 



45 



9.317 



52 



2 



24.91 



14 





12 



6 



59 



54.97 



23 



52 



16.184 



51 



5 



23.71 



11 



>) 



13 



6 



37 



19.04 



23 



59 



19.388 



50 



4 



58.17 



4 





17 



7 



27 



39.88 







24 



28.638 



45 



59 



10.16 



7 





20 



10 



24 



44.96 







40 



30.642 



42 



54 



50.14 



9 



;, 



21 



8 



27 



9.89 







44 



44.511 



42 



2 



10.16 



5 





22 



7 



36 



19.92 







49 



0.566 



41 



7 



51.14 



8 



>? 



23 



10 



.19 



4.72 







53 



42.774 



40 



6 



6.82 



5 





24 



7 



21 



20.47 







57 



13.625 



T9 



18 



17.17 



9 



j> 



25 



6 



44 



58.76 



1 







58.806 



38 



26 



14.25 



2 





28 



7 



44 



8.40 



1 



11 



43.889 



35 



50 



13.13 



11 



J) 



29 



7 



30 



35.35 



1 



14 



57.249 



35 



1 



34.78 



11 



March 



1 



7 



52 



35.50 



1 



18 



8.888 



34 



9 



25.57 



3 



JJ 



3 



7 



30 



17.55 



1 



24 



1.221 



32 



40 



4.76 



10 



JJ 



4 



7 



18 



0.15 



1 



26 



48.581 



31 



55 



31.03 



11 



5) 



5 



7 



36 



57.85 



1 



29 



32.423 



31 



10 



41.80 



10 



JJ 



6 



7 



25 



47.30 



1 



32 



8.990 



30 



28 



10.08 



9 



JJ 



7 



7 



41 



29.37 



1 



34 



42.030 



29 



45 



41.59 



7 





9 



7 



35 



22.20 



1 



39 



32.121 



28 



24 



27.00 



8 



J? 



11 



7 



45 



35.77 



1 



44 



5.870 



27 



6 



18.05 



7 



J) 



16 



18 



4 



11.57 



1 



54 



28.674 



24 



5 



17.24 



6 



J) 



17 



8 



5 



25.47 



1 



56 



24.191 



23 



31 



20.68 



2 



■}•} 



18 



8 







6.46 



1 



58 



15.616 



22 



58 



12.00 



16 



JJ 



20 



8 



26 



38.67 



2 



1 



52.951 



21 



53 



17.10 



3 



J> 



21 



7 



53 



58.95 



2 



3 



37.332 



21 



22 



54.45 



8 



?? 



22 



7 



52 



56.85 



2 



5 



19.245 



20 



52 



0.14 



4 



J? 



24 



8 



17 



15.92 



2 



8 



41.044 



19 



51 



52.52 



8 



