172 



Report of the Kew Committee. 



Table V. — Hourly Means of the Vertical Force (corrected for Temperature) at the 



the Five selected quiet Days in each 



"43000 + (C.G-.S. units). 



Hours 



Mid. 



1. 



2. 



3. 



4. 



5. 



6. 



7. 



8. 



9. 



10. 



11. 





Winter. 





1891. 





























Months. 





























Jan. , . 



958 



967 



967 



968 



967 



967 



968 



967 



966 



966 



967 



966 





Feb. .. 



961 



959 



959 



959 



959 



959 



959 



960 



960 



961 



960 



960 





March 



971 



964 



964 



965 



966 



967 



968 



970 



970 



967 



961 



956 





Oct. .. 



952 



949 



949 



949 



949 



949 



949 



950 



950 



948 



941 



939 





Nov. .. 



944 



945 



945 



945 



945 



945 



945 



946 



946 



945 



943 



942 





Dec. .. 



939 



944 



944 



944 



943 



942 



941 



941 



939 



938 



937 



937 





Mean . . 



954 



955 



955 



955 



955 



955 



955 



956 



955 



954 



952 



950 





Summer. 





April . . 



965 



976 



975 



974 



975 



975 



977 



979 



978 



971 



965 



957 





May .. 



963 



964 



964 



965 



968 



972 



971 



970 



968 



962 



956 



951 





June . . 



974 



979 



979 



981 



983 



984 



984 



984 



979 



973 



969 



964 





July .. 



969 



974 



973 



974 



976 



978 



978 



979 



979 



975 



969 



960 





Aug. .. 



973 



974 



973 



974 



974 



977 



977 



977 



975 



972 



966 



962 





Sept. .. 



961 



965 



965 



965 



966 



968 



968 



969 



967 



963 



957 



956 





Mean . . 



968 



972 



972 



972 



974 



976 



976 



976 



974 



969 



964 



958 





Table VI. — Diurnal Range of the Kew 



iours 



Mid. 1 1. 



I 



2. 



3. 



4. 



5. 



6. 



7. 



8. 



9. 



j j 



10. 



11. 







Summer mean. 







1 



- -0002 | + -00002 



+ -00002 



+ -00002 



+ -00004 



+ -00006j+ -00006 



+ 



•00006 



+ -00004 j - -00001 - 



•00006 



- -00012 





Winter mean. 







- -00001 '00000 



1 1 



•00000 



•00000 



1 



•00000 



■00000 j 



•00000 | 



1 



+ 



1 



ooooi 1 



•ooooo 



1 1 



j - -oocoij- 



•00003 



- -00005 





Annual mean. 







) 



- -0002 + -00001! 



■h -ooooi 



+ -0000l|+ -00002 



+ -00003 



+ -00003 



+ 



•00003 



+ -00002 



-•00001 - 



•00005 



- -00009 





Note.— When the sign is + the 



