Vertical Component of Magnetic Force. 



383 



TABLE XLVIII. — Differences between the Hourly Means of Balance Micrometer Readings for 

 the whole series in each Month, and those for the selected Ten Days ; or Table XLII. minus 

 Table XLIV. 



Mak. 

 M. T. 



Jan. 



Feb. 



March. 



April. 



May. 



June. 



July. 



Aug. 



Sept. 



Oct. 



Nov. 



Dec. 



Year. 



h. 



Mic. Diy. 



Mic. Div. 



Mic. Div. 



Mic. Div. 



Mic. Div. 



Mic. Div. 



Mic. Div. 



Mic. Div. 



Mic. Div. 



Mic. Div. 



Mic. Div. 



Mic. Div. 



Mic. Div. 



12 



-1-8 



- 7-0 



-18-9 



-28-0 



-15-7 



-0-9 



- 



3-2 



-19-6 



-160 



-16-7 



-16-6 



- 4-8 



-12-5 



13 



+ 0-2 



- 7-7 



-22-1 



-17-4 



-16-0 



-5-1 



- 



6-1 



-16-6 



-14-4 



-18-0 



-15-5 



- 1.3 



-11-7 



14 



-20 



- 9-1 



-290 



-18-4 



-19-7 



-4-7 



- 



4-5 



-20-9 



-16-1 



-21-8 



- 9-9 



- 6-5 



-13-6 



15 



-3-7 



-10-8 



-22-8 



-23-2 



-18-0 



-2-9 



- 



4-3 



-14-3 



-19-8 



-26-0 



-100 



- 70 



-13-6 



16 



-7-2 



- 9-3 



-15-8 



-25-3 



-17-4 



-20 



— 



3-2 



-10-5 



-15-5 



-35-8 



- 9-9 



- 7-9 



-13-3 



17 



-9-4 



- 9-4 



-18-1 



-25-7 



-130 



-2-6 



- 



1-5 



- 8-6 



-14-7 



-26-4 



- 9-0 



- 8-3 



-12-2 



18 



-6-9 



- 6-5 



-14-4 



-21-0 



- 7-8 



-2-6 



- 



8-0 



- 9-7 



-12-9 



-16-8 



- 8-0 



- 6-1 



-10-0 



19 



-4-9 



- 30 



- 5-7 



-100 



- 3-5 



-2-8 



- 



8-1 



- 7-2 



- 90 



- 9-2 



- 6-8 



- 4-0 



- 6-3 



20 



-3-8 



- 2-8 



- 0-2 



- 6-9 



- 1-3 



-2-4 



- 



7-9 



- 50 



- 7-2 



- 4-3 



- 6-0 



- 4-5 



- 4-4 



21 



-3-0 



- 0-2 



+ 2-8 



- 51 



+ 2-0 



-0-8 



- 



6-7 



- 3-9 



- 2-9 



+ 1-3 



- 6-7 



- 4-5 



- 2-3 



22 



-2-4 



+ 0-5 



+ 7-6 



- 2-6 



+ 2-6 



-0-8 



- 



5-2 



- 1-9 



+ 1-1 



+ 7-7 



- 4-8 



- 3-8 



- 0-1 



23 



-21 



+ 3-7 



+ 130 



+ 5-9 



+ 4-8 



+ 0-5 



- 



2-6 



0-0 



+ 4-0 



+ 10-9 



- 1-5 



- 2-5 



+ 2-9 







+ 0-8 



+ 2-8 



+ 13-3 



+ 20-9 



+ 6-4 



-11 



- 



0-7 



+ 2-9 



+ 5-7 



+ 20-3 



+ 7-6 



- 1-4 



+ 6-5 



I 



+ 4-2 



+ 2-2 



+ 17-4 



+ 13-4 



+ 4-3 



+ 3-0 



+ 



1-2 



+ 6-0 



+ 7-1 



+ 19-0 



+ 7-5 



+ 0-4 



+ 7-1 



2 



+ 5-4 



+ 4-2 



+ 25-4 



+ 13-4 



+ 4-7 



+ 1-9 



+ 



3-7 



+ 7-4 



+ 7-9 



+ 21-2 



+ 7-8 



+ 2-8 



+ 8-9 



3 



+ 6-6 



+ 6-2 



+ 25-7 



+ 21-1 



+ 8-1 



+ 4-0 



+ 



7-9 



+ 13-9 



+ 16-6 



+ 24-1 



+ 18-1 



+ 6-4 



+ 13-2 



4 



+ 6-1 



+ 9-5 



+ 18-5 



+ 20-2 



+ 11-9 



+ 4-4 



+ 11-8 



+ 16-3 



+ 22-7 



+ 20-0 



+ 29-4 



+ 7-6 



+ 14-8 



5 



+ 8-5 



+ 12-8 



+ 20-7 



+ 28-9 



+ 16-9 



+ 3-2 



+ 12-4 



+ 21-1 



+ 22-9 



+ 22-5 



+ 31-4 



+ 9-1 



+ 17-5 



6 



+ 9-1 



+ 15-8 



+ 24-1 



+ 31-6 



+ 16-8 



+ 3-1 



+ 



7-4 



+ 24-2 



+ 20-4 



+ 16-4 



+ 25-6 



+ 15-7 



+ 17-5 



7 



+ 9-0 



+ 11-5 



+ 19-3 



+ 25-0 



+ 14-6 



+ 3-5 



+ 



9-0 



+ 21-8 



+ 13-8 



+ 18-7 



+ 14-5 



+ 11-5 



+ 14-3 



8 



+ 4-6 



+ 10-4 



+ 100 



+ 14-8 



+ 12-2 



+ 5-2 



+ 



5-5 



+ 17-3 



+ 6-7 



+ 6-9 



+ 1-1 



+ 7-1 



+ 8-5 



9 



+ 0-9 



- 20 



- 8-8 



+ 3-5 



+ 8-6 



+ 2-0 



+ 



4-1 



+ 6-9 



+ 3-1 



- 0-7 



- 6-7 



+ 3-3 



+ 1-2 



10 



-4-7 



- 1-5 



-26-6 



- 3-5 



+ 1-3 



-0-6 1 + 



0-4 



- 2-9 



- 0-3 



- 8-1 



-14-8 



+ 0-7 



- 5-1 



11 



-3-3 



- 9-9 



-15-4 



-11-6 



- 3-0 



-1-4 



11 



-16-7 



- 3-0 



- 5-0 



-16-6 



1-6 



- 7-4 



TABLE XLIX. — Differences between the Hourly Means of Balance Micrometer Readings for the 

 whole series in each Month, and those for the selected Five Days ; or Table XLII. minus 

 Table XLV. 



i Mak. 

 M. T. 



Jan. 



Feb. 



March. 



April. 



May. 



June. 



July. 



Aug. 



Sept. 



Oct. 



Nov. 



Dec. 



Year. 



h. 



Mic. Div. 



Mic. Div. 



Mic. Div. 



Mic. Div. 



Mic. Div. 



Mic. Div. 



Mic. Div. 



Mic. Div. 



Mic. Div. 



Mic. Div. 



Mic. Div. 



Mic. Div. 



Mic. Div. 



12 



— 



2-1 



- 6-2 



-237 



-30-4 



-23-2 



+ 4-7 



- 4-8 



-23-7 



-22-3 



-16-3 



-19-7 



- 



7-3 



-14-6 



13 



— 







3 



- 7-3 



-26-6 



-22-8 



-22-1 



-1-9 



- 5-3 



-19-9 



-19-7 



-17-2 



-16-5 



- 



3-8 



-13-6 



14 



- 



1 



6 



- 9-4 



-311 



-20-4 



-23-7 



-3-3 



- 2-8 



-24-4 



-19-8 



-23-2 



- 9-2 



- 



80 



-14-8 



15 



- 



1 



7 



— 11-6 



-25-2 



-24-4 



-20-1 



-0-8 



- 4-1 



-16-8 



-19-6 



-27-9 



- 9-2 



- 



8-1 



-141 



16 



— 



6 



■9 



-10-9 



-191 



-25-9 



-19-8 



-1-8 



+ 0-1 



-11-5 



-12-8 



-36-9 



- 9-7 



- 



7-5 



-13-6 



17 



- 



9 







- 9-5 



-20-5 



-26-9 



-13-2 



-4-3 



+ 1-0 



- 9-6 



-14-7 



-27-8 



- 9-0 



— 



7-1 



-12-6 



18 



- 



5 



5 



- 7-0 



-16-9 



-23-3 



- 57 



-3-7 



- 6-1 



-10-4 



-15-8 



-19-1 



- 6-8 



— 



5-9 



-10-5 



19 



- 



4 







- 3-7 



- 7-2 



- 8-3 



+ 0-6 



-5-3 



- 8-0 



- 8-4 



-11-6 



-11-4 



- 5-6 



- 



3-2 



- 6-4 



20 



- 



3 







- 5-5 



- 1-5 



- 9-6 



+ 2-8 



-3-3 



-10-2 



- 6-6 



- 9-0 



- 7-2 



- 6-4 



- 



47 



- 5-4 



21 



— 



3 



9 



- 0-8 



+ 0-9 



-10-3 



+ 6-6 



+ 2-9 



- 7-4 



- 5-4 



- 2-7 



- 0-8 



- 7-3 



- 



3-6 



- 2-7 



22 



- 



1 



1 



- 0-7 



+ 5-8 



- 3-2 



+ 5-6 



+ 3-1 



- 6-8 



- 2-3 



+ 0-9 



+ 6-4 



- 4-7 



- 



2-8 



+ 01 



23 



- 



2 







+ 3-3 



+ 12-5 



+ 5-3 



+ 6-3 



+ 31 



- 1-0 



+ 0-9 



+ 3-9 



+ 9-2 



+ 0-6 



- 



20 



+ 3-4 







+ 







2 



+ 1-4 



+ 12-6 



+ 21-8 



+ 4-5 



-31 



+ 0-3 



+ 5-7 



+ 8-0 



+ 18-7 



+ 11-1 



- 



0-4 



+ 6-7 



1 



+ 



3 



3 



+ 0-8 



+ 17-2 



+ 17-5 



+ 2-8 



-0-8 



- 1-0 



+ 8-7- 



+ 10-5 



+ 18-0 



+ 12-0 



+ 



2-2 



+ 7-6 



2 



+ 



4 



3 



+ 3-2 



+ 25-6 



+ 16-9 



+ 1-7 



-0-5 



- 0-9 



+ 9-2 



+ 11-6 



+ 20-0 



+ 11-8 



+ 



32 



+ 8-9 



3 



+ 



6 







+ 4-4 



+ 25-5 



+ 21-2 



+ 81 



-0-5 



+ 7-4 



+ 16-7 



+ 20-1 



+ 24-4 



+ 20-4 



+ 



71 



+ 13-4 



4 



+ 



6 



3 



+ 7-8 



+ 220 



+ 19-1 



+ 13-3 



+ 1-2 



+ 12-4 



+ 20-3 



+ 26-8 



+ 23-5 



+ 29-3 



+ 



8-8 



+ 15-9 



5 



+ 



9 



5 



+ 13-6 



+ 27-9 



+ 31-4 



+ 20-0 



+ 3-1 



+ 13-2 



+ 24-3 



+ 26-1 



+ 270 



+ 30-3 



+ 



9-3 



+ 19-6 



6 



+ 



9 



5 



+ 16-5 



+ 31-9 



+ 34-7 



+ 21-8 



+ 3-7 



+ 8-2 



+ 27-0 



+ 21-9 



+ 19-9 



+ 21-4 



+ 



15-3 



+ 1 9-3 



7 



+ 10 







+ 11-9 



+ 25-3 



+ 27-3 



+ 17-6 



+ 3-7 



+ 9-3 



+ 230 



+ 13-5 



+ 21-4 



+ 10-3 



+ 11-8 



+ 15-4 



8 



+ 



6 



6 



+ 13-1 



+ 151 



+ 18-7 



+ 13-9 



+ 4-5 



+ 6-2 



+ 17-6 



+ 6-8 



+ 9-2 



- 0-5 



+ 



8-1 



+ 100 



9 



— 



1 







+ 3-9 



- 2-5 



+ 5-3 



+ 9-1 



+ 0-7 



+ 4-2 



+ 7-0 



+ 5-5 



+ 0-8 



- 7-8 



+ 



3-5 



+ 2-4 



10 



— 



7 



9 + 2-6 



-28-3 



- 2-4 



- 0-4 



-0-5 



- 1-2 



- 3-6 



- 0-7 



- 5-3 



-170 



— 



0-5 



- 5-5 



11 



- 



5 



7\~ 9-4 



-19-7 - 11-6 



- 6-5 



-0-8 



- 2-6 



-17-8 



- 6-6 



- 5-4 



-17-8 



- 



4-3 



- 90 1 



