220 



Abstracts of the Makerstoun Observations, 1843. 



In order to avoid repetition, it may be remarked generally, — 



First, That the results for the month of January are more imperfect than those for the succeeding months, 

 as on the first week of 1843 only four daily observations were made, and on the second week only eight. Attempts 

 have been made to render the means comparable and as complete as possible, by means of observations made at all 

 the 24 hours in 1844 : these will be found explained after the various Tables. 



Second, In obtaining the hourly means for the month of January the first week's observations- were wholly 

 rejected. 



Third, It is obvious that the daily means from the nine observations, whatever attempts at correction may 

 have been made, are imperfect, and that the results deduced from these means cannot be expected to be so distinct 

 as they would have been from twelve two-hourly observations. 



Fourth, As no observations were made on Sundays, the places which the means for Sundays would have 

 occupied have been filled up by the means of the three preceding and three succeeding days ; these means are 

 therefore weekly means, and may be considered as approximate means for the Sundays. They have been used in 

 the summations having reference to the moon's position, as it was considered that the want of any means on these 

 days would affect the accuracy of the results more seriously than the use of the approximations. 



Fifth, The time used in all the Tables is Gbttingen mean time astronomical reckoning ; but in the Remarks 

 on the Tables, Makerstoun mean time civil reckoning is used, unless the reverse is stated ; thus 20** in the Tables 

 is equivalent to 7** 10"" a.m. in the Remarks. 



TABLE I. — Mean Westerly Declination for each Civil Day, as deduced from the Nine Daily 

 Observations, for each Week, and for each Month in the year 1843. 



Civil 

 Day. 



January. 



February. 



March. 



April. 



May. 



June. 



July. 



August. 



September. 



October. 



November. 



December. 





25° 



25° 



25° 



25° 



25° 



25° 



25° 



25° 



25° 



25° 



25° 



25° 



1 



[••••••] 



25-15 



24-67 



25-46 



23-18 



25-74 



26-29 



22-45 



22-71 



[23-93] 



18-92 



17-48 



2 



27-67 



25-32 



24-98 



[24-98] 





26-43 



[26-02] 



22-41 



23-28 



23-76 



20-73 



20-03 



3 



26-49 



25-22 



24-92 



25-76 



24-04 



27-07 



26-66 



22-55 



[22-41] 



25-04 



21-95 



[19-16] 



4 



26-77 



24-28 



25-43 



26-22 



24-87 



[25-96] 



26-79 



23-11 



20-03 



24-01 



21-95 



19-23 



5 



27-01 



[24-80] 



[25-87] 



25-09 



24-01 



25-82 



26-78 



22-26 



23-20 



24-20 



[21-35] 



19-44 



6 



27-08 



21-34 



25-95 



27-98 



22-15 



25-01 



23-99 



[22-88] 



22-12 



22-71 



22-60 



21-46 



7 



24-26 



26-41 



28-51 



24-52 



[23-42] 



25-70 



23-45 



22-15 



20-80 



22-97 



21-31 



20-52 



8 



[25-57] 



26-25 



25-43 



24-54 



23-54 



25-34 



27-42 



21-96 



21-42 



[23-20] 



19-56 



20-14 



9 



25-48 



26-58 



25-50 



[25-02] 



22-82 



24-17 



[24-98] 



25-27 



22-71 



23-04 



20-12 



20-70 



10 



25-24 



26-35 



24-84 



24-42 



23-13 



25-67 



26-28 



22-91 



[21-92] 



23-27 



19-32 



[20-48] 



11 



24-33 



25-11 



24-81 



23-87 



24-40 



[25-88] 



24-72 



22-69 



23-45 



23-02 



19-10 



20-13 



12 



23-73 



[25-52] 



[24-92] 



24-78 



25-00 



26-09 



24-00 



22-93 



22-63 



23-03 



[19-42] 



20-86 



13 



24-85 



24-06 



26-54 



25-10 



24-20 



25-27 



24-25 



[23-28] 



20-54 



24-09 



19-99 



20-54 



14 



25-55 



26-28 



24-21 



24-90 



[24-77] 



28-75 



22-24 



23-52 



20-39 



23-73 



18-90 



20-72 



15 



[25-47] 



24-72 



23-60 



24-12 



25-45 



28-37 



23-97 



24-25 



20-30 



[23-17] 



19-08 



20-73 



16 



26-73 



24-66 



23-36 



[24-59] 



25-95 



28-33 



[23-35] 



23-41 



20-41 



22-66 



19-16 



20-58 



17 



25-63 



25-70 



24-20 



24-56 



23-62 



28-14 



23-84 



2317 



[20-65] 



22-96 



19-26 



[20-05] 



18 



26-35 



24-92 



25-98 



25-07 



24-28 



[25-26] 



22-16 



23-64 



20-33 



22-56 



19-87 



19-63 



19 



28-64 



[25-17] 



[25-28] 



23-77 



24-19 



23-05 



23-67 



24-01 



21-18 



19-33 



[19-32] 



18-85 



20 



29-34 



24-47 



25-76 



22-72 



23-29 



21-56 



22-22 



[23-79] 



21-27 



21-62 



19-45 



19-77 



21 



27-84 



25-25 



25-73 



23-82 



[23-72] 



22-11 



23-73 



23-20 



19-97 



21-84 



18-73 



18-24 



22 



[26-95] 



26-01 



26-63 



23-70 



23-84 





23-33 



26-66 



21-66 



[21-62] 



19-47 



18-30 



23 



24-80 



25-71 



25-90 



[23-47] 



22-66 





[23-32] 



22-04 



21-35 



22-32 



18-92 



18-29 



24 



25-03 



28-69 



2513 



23-74 



24-05 



27-90 



20-57 



21-24 



[21-00] 



22-23 



19-27 



[18-54] 



25 



26-06 



25-97 



24-80 



23-45 



24-95 



[26-74] 



26-13 



22-82 



20-32 



22-37 



18-81 



18-49 



26 



25-48 



[26-08] 



[24-48] 



23-38 



24-18 



26-52 



23-96 



21-88 



21-02 



20-14 



[18-85] 



19-06 



27 



26-21 



2570 



24-89 



23-84 



23-09 



26-19 



23-74 



[22-36] 



21-66 



21-36 



18-72 



18-84 



28 



25-51 



25-75 



23-75 



23-19 



[24-72] 



26-37 



22-80 



23-30 



24-78 



21-28 



18-92 



20-43 



29 



[25-36] 





22-40 



23-05 



24-98 



23-14 



22-81 



23-02 



22-74 



[20-67] 



18-49 



18-38 



30 



24-99 





23-36 



[23-46] 



26-23 



26-46 



[22-88] 



21-88 



23-24 



21-95 



17-31 



18-51 



31 



24-85 





24-02 





24-91 





23-05 



23-11 





20-35 





[19-85] 



Mean 



26-00 



25-41 



25-01 



24-44 



24-12 



25-80 



24-19 



23-03 



21-67 



22-53 



19-61 



19-59 



