Magnetic Declination, 1845, 



TABLE VII.- 



-List of Seven Days in each Month of 1845 upon which the Magnetic Declination 

 was least irregular. 



Jan. 



Feb. 



March. 



April. 



May. 



June. 



July. 



Aug. 



Sept. 



Oct. 



Nov. 



Dec. 



d. 



d. 



d. 



d. 



d. 



d. 



d. 



d. 



d. 



d. 



d. 



d. 



3 



8 



4 



5 



2 



3 



5 



11 



6 



6 



6 



1 



4 



11 



5 



10 



3 



6 



14 



12 



10 



13 



8 



9 



6 



12 



6 



12 



7 



12 



15 



13 



15 



14 



12 



11 



8 



14 



8 



17 



9 



13 



16 



16 



16 



16 



13 



19 



16 



15 



12 



23 



26 



18 



23 



19 



22 



23 



14 



24 



18 



18 



13 



24 



27 



19 



26 



20 



23 



24 



15 



25 



31 



19 



31 



26 



28 



27 



30 



21 



24 



30 



20 



27 



TABLE VIII. — Hourly Means of Magnetic Declination for the Seven Days least disturbed in each 

 Month of 1845, corrected so that the Mean of each Seven Days equals the Monthly Mean. 



Mak. 

 M. T. 



Jan. 



Feb. 



March. 



April. 



May. 



June. 



July. 



Aug. 



Sept. 



Oct. 



Nov. 



Dec. 



Year. 



1). 



25° 



25° 



25° 



25° 



25° 



25° 



25° 



25° 



25° 



25° 



25° 



25° 



25° 



12 



13-71 



12-63 



12-41 



09-85 



11-15 



10-61 



10-04 



09-80 



09-94 



09-71 



0908 



07-62 



10-55 



13 



13-36 



13-79 



12-05 



10-21 



10-93 



10-89 



09-62 



09-13 



09-43 



09-48 



09-02 



07-91 



10-48 



14 



13-69 



13-72 



11-65 



10-08 



10-70 



10-14 



0905 



09-52 



08-83 



09-74 



09-05 



08-15 



10-36 



15 



13-38 



13-26 



n-28 



09-42 



10-28 



08-96 



08-76 



08-98 



07-80 



10-05 



09-30 



08-22 



09-97 



16 



13-51 



12-79 



11-33 



08-99 



09-50 



07-59 



07-81 



08-33 



08-07 



09-67 



09-12 



07-94 



09-55 



17 



13-38 



12-76 



11-31 



07-96 



08-05 



06-26 



06-22 



06-73 



07-41 



09-51 



0906 



08-07 



08-89 



18 



13-22 



12-80 



11-24 



07-66 



06-91 



05-50 



05-89 



05-83 



06-93 



09-47 



08-77 



07-74 



08-50 



19 



13-25 



12-94 



11-26 



06-26 



06-13 



05-39 



06-14 



05-60 



07-08 



08-91 



08-46 



07-58 



08-25 



20 



13-68 



13-19 



11-14 



06-26 



07-24 



06-05 



07-30 



05-73 



07-80 



08-64 



08-46 



07-63 



08-59 



21 



14-36 



13-77 



11-67 



07-51 



09-27 



08-11 



09-15 



08-33 



09-44 



09-32 



09-09 



07-32 



09-78 



22 



15-32 



14-83 



12-85 



10-67 



12-23 



11-54 



11-50 



12-09 



12-01 



12-19 



10-87 



08-36 



12-04 



23 



16-42 



16-20 



15-34 



14-53 



15-11 



15-37 



14-50 



15-15 



15-19 



14-36 



12-35 



09-92 



14-54 







15-88 



16-95 



17-90 



18-02 



16-46 



17-50 



16-84 



17-46 



16-94 



15-74 



12-44 



11-05 



16-10 



1 



16-13 



17-00 



18-32 



19-62 



16-87 



17-70 



17-65 



18-23 



16-71 



15-75 



12-28 



11-19 



16-45 



2 



15-11 



16-21 



17-81 



18-25 



15-71 



17-37 



16-37 



17-22 



14-54 



14-07 



11-20 



10-59 



15-37 



3 



14-98 



14-98 



16-18 



16-52 



14-39 



16-26 



15-22 



14-74 



12-42 



12-60 



10-26 



09-43 



14-00 



4 



14-46 



14-13 



14-05 



14-89 



12-84 



14-26 



14-15 



12-23 



10-98 



10-80 



09-97 



08-33 



12-59 



5 



14-05 



13-83 



13-05 



13-16 



11-63 



12-21 



13-51 



10-28 



10-23 



10-70 



09-48 



08-24 



11-70 



6 



13-78 



13-43 



13-26 



11-69 



10-99 



11-56 



12-37 



09-52 



09-76 



10-06 



09-31 



08-28 



11-17 



7 



13-73 



13-31 



12-77 



10-90 



10-94 



11-55 



11-75 



09-95 



09-75 



09-57 



08-76 



0805 



10-92 



8 



13-46 



12-93 



12-39 



09-74 



11-28 



11-26 



11-51 



10-31 



09-97 



09-70 



08-56 



07-43 



10-71 



9 



13-05 



12-77 



11-76 



09-93 



11-39 



11-22 



10-92 



10-41 



09-00 



09-55 



07-94 



06-81 



10-40 



10 



13-22 



12-20 



12-33 



10-14 



11-25 



11-25 



10-26 



10-29 



09-49 



09-28 



08-42 



07-06 



10-43 



11 



13-05 



12-78 



12-14 



09-96 



11-20 



10-67 



09-94 



09-66 



09-18 



09-44 



08-42 



07-25 



10-31 



MAG. AND MET. OBS. 1845 AND 1846. 



