342 Report of the Kew Committee, 



Table V. — Hourly Means of the Vertical Force in C.G.S. units (correctec 



Hours 



Mid. 



1. 



2. 



3. 



4. 



5. 



6. 



7. 



8. 



9. 



10. 



11. 





0-43000 + 









"Winter. 













1892. 



























Months. 



























Jan. , . 



938 



938 



936 



935 



934 



934 



934 



934 



935 



935 



936 



935 



Feb. .. 



914 



911 



910 



911 



912 



913 



915 



914 



915 



912 



909 



907 



March . 



927 



927 



927 



927 



927 



927 



925 



925 



926 



922 



917 



910 



Oct, .. 



911 



909 



908 



909 



911 



912 



913 



915 



916 



915 



910 



905 



Nov. . . 



930 



931 



930 



930 



931 



931 



931 



930 



932 



932 



928 



925 



Dec. .. 



911 



911 



912 



912 



913 



914 



913 



913 



913 



913 



913 



913 



Mean . . 



922 



921 



921 



921 



921 



922 



922 



922 



923 



922 



919 



916 



Summer. 



April . . 



921 



921 



921 



922 



923 



924 



925 



928 



926 



919 



913 



906 



May .. 



931 



933 



934 



936 



939 



941 



941 



939 



934 



927 



918 



912 



June . . 



913 



913 



914 



915 



919 



922 



920 



919 



915 



909 



903 



893 



July .. 



911 



910 



910 



911 



913 



916 



913 



909 



908 



905 



900 



895 



Aug. .. 



906 



907 



908 



907 



909 



912 



914 



914 



912 



907 



899 



894 



Sept. . . 



918 



918 



919 



920 



920 



922 



924 



924 



921 



914 



907 



903 



Mean . . 



917 



917 



918 



919 



921 



923 



923 



922 



919 



914 



907 



901 



Note. — During Ju.lv, August, and September the Vertical Force Magnetograph was at times 

 days (August 30) this disturbance was such as to make the indications of the instrument doubtful, 

 on four days only. 



Table VI. — Diurnal Range of the Kew 



Hours 



Mid. 



1. 



2. 



3. 



4. 



5. 



6. 



7. 



8. 



9. 



10. 



11. 



Summer mean. i 





-i- -00C02 



1 



+ -00002|+ -00003 



+ -00004 



+ -00006 



+ -00008 



+ -00008 



+ -00007 



+ -00004 



- -ooooi 



- -00008 



- -00014 



Winter mean. 







'00000 



- "00001 



- -ooooi 



- -ooooi 



- -ooooi 



•ooooo 



•ooooo 



•ooooo 



+ -ooooi 



•ooooo 



- '00003 



- -00006 



Annual mean. 





4- *00001 



•ooooo 



+ -ooooi 



+ -00002 



+ -00003 



+ -00004 



+ -00004 



+ -00003 



+ -00002 



•ooooo 



- -00005 



- -oooio 



Note.— When the sign is + the 



