24 Report of the Kew Observatory Committee. 



Table Y. — Hourly Means of the Vertical Force in C.G.S. units (corrected 



(The Mean for the 



Hours 



Preceding 



Mid. 



1. 



2. 



3. 



4. 



5. 



6. 



7. 



8. 



9. 



10. 



11. 





J noon. 























•43000 + 





Winter. 















1898. 





























Months. 





























J an. . . . 



892 



899 



899 



899 



899 



899 



898 



897 



897 



896 



895 



895 



897 



Feb. ... 



897 



902 



902 



901 



901 



901 



901 



901 



900 



900 



900 



898 



896 



March . . 



891 



908 



908 



908 



906 



905 



905 



904 



904 



904 



902 



897 



891 



Oct. ... 



850 



862 



862 



861 



861 



862 



861 



862 



863 



862 



857 



852 



852 



Nov. . . . 



865 



873 



874 



875 



875 



874 



874 



872 



870 



870 



870 



868 



867 



Dec. ... 



868 



863 



863 



862 



862 



863 



864 



864 



864 



863 



863 



863 



862 



Means 



877 



884 



885 



884 



884 



884 



884 



883 



883 



882 



881 



879 



877 



Summer. 



April . . . 



875 



898 



897 



896 



896 



895 



894 



893 



893 



891 



888 



884 



879 



May . . . 



878 



898 



897 



896 



896 



898 



898 



899 



897 



892 



885 



878 



873 



June . . . 



883 



894 



892 



892 



891 



892 



894 



892 



891 



889 



883 



876 



873 



July ... 



893 



905 



905 



903 



903 



902 



904 



903 



902 



900 



895 



893 



889 



Aug. . . . 



883 



898 



897 



895 



895 



896 



897 



897 



896 



894 



889 



887 



886 



Sept. ... 



830 



853 



852 



851 



850 



850 



850 



851 



851 



849 



846 



840 



837 



Means 



874 



891 



890 



889 



889 



889 



890 



889 



888 



886 



881 



876 



873 



Table YI. — Diurnal Inequality of the 



Hoursj Mid. 1. 



2. 



3. 



4. 



5. 



6. 



7. 



8. 



9. 



10. 



11. 



Summer Means. 



1 



+ -0C003 + -00002! + -00001 



i 1 



+ -ooooi 



+ -ooooi 



+ -00002 



+ -00002 



+ '00001 



- -00002 - -00007|- -00011 



- -00015 



Winter Means. 



1 1 



| + -00001 + -00001 



1 1 



+ -00001 



+ -ooooi 



+ -ooooi 



•ooooo 



•00000 



•ooooo 



- -ooooi 



- -00002 



- -00004 



- -00006 



Annual Means. 



|+-00002j+ -00002 



+ -ooooi 



+ -ooooi 



+ -ooooi 



+ -ooooi 



+ -ooooi 



•ooooo 



- -ooooi 



- -00004 



- -00008 



- -00010 



Note.— When the sign is + the 



