14 RESULTS OF MAKERSTOUN OBSERVATIONS, 1845. 
TABLE XXIV.—List of Ten Days in each Month of 1845 upon which the Horizontal Component 
of Magnetic Force was least disturbed. 
TABLE XXV.—Hourly Means of the Bifilar Magnetometer Scale Readings corrected for Tempera- 
ture, for the Ten Days least disturbed in each Month of 1845, corrected so that the Mean of each 
Ten Days equals the Monthly Mean. 
March. May. | June. 
Se. Div. Se. Div. | Se. Diy. Se. Div. 
38-06 40-33 | 42-69 42-28 
36-21 39-79 | 40-98 41-91 
35-80 39-11 | 39-88 42-58 
36:30 38-79| 39-41 43-79 
36-59 38-38 | 38-97 " 44-18 
36-99 36:35 | 37-34 44-83 
36-55 : 34-95 | 35:52 . : . 44-66 
35°89 31-91] 32-76 " B 42-93 
32-49 27-38} 30-13 D : 38-00 
29-29 o 24-61) 27-31 F : : 35-40 
26-34 24-51} 25-64 33-63 
26-89 26-09 | 29-17 34-78 
30-73 30-44 | 34.94 38-40 
32-71 35-34 | 40-64 . 41-22 
36-02 39-57 | 42-58 42-60 
38-31 44-04 | 46-44 44:27 
38-77 Hi 45-46 | 47-60 : . D 44-69 
38-32 48-14} 49-54 44-67 
38-61 48-63 | 50-46 : 43-98 
39-87 . 47-37 | 50-56 : 43-55 
38-32 45-72 | 49-16 43-39 
38-54 44-95 | 47-01 42.06 
38-56 42-47 | 45-07 42-36 
38-96 41-08 | 43.77 42-80 
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