168 



Report of the Kew Committee. 



Table I. — Hourly Means of Declination at the Kew Observatory, Richmond, as 

 (17° + West). Month during 



Hours 



Mid. 



1. 



2. 



3. 



4. 



5. 



6. 



7. 



8. 



9. 



10. 



11. 



Winter. 



1891. 

 Months. 

 Jan. . . 

 Feb. .. 

 March . 

 Oct. .. 

 Nov. .. 

 Dec. .. 



44-9 

 44 '4 

 42-8 

 39-2 

 39-2 

 39'5 



45-1 

 43-8 

 42-8 



39- 2 

 40 -2 



40- 1 



45-5 

 43-6 

 43 2 

 39 2 



39- 9 



40- 3 



45 -8 

 43-9 

 43 -2 

 39 -9 

 40-2 

 40-6 



45 -7 

 44-0 

 42-7 



39- 4 



40- 4 

 40-8 



/ 



45 -4 

 441 

 42-6 



39- 3 



40- 3 

 40 -6 



/ 



45-1 

 43-7 

 42-2 



39 -1 



40 3 

 40-2 



44 7 

 43-6 

 41 -5 



38- 1 



39- 9 



40- 1 



44'5 

 43 -6 

 40-4 

 36-7 

 39-2 

 39 -8 



44-2 

 43 -7 

 41 -4 

 36-6 

 39-3 

 39 -6 



45-6 

 44-7 

 43 2 

 38-1 

 40 3 

 40-7 



46-7 

 46-1 

 46-2 



41- 5 

 43 -0 



42- 1 



Mean 



41 -7 



41 -9 



42 



42 3 



42 '2 



42-1 



41-8 



41 3 



40-7 



40-8 



42-1 



44-3 



Summer. 



1 































April . 

 May . 

 June . 

 July . 

 Aug. . 

 Sept. . 





42*5 

 40-4 

 40-8 

 39-7 

 39 -3 

 395 



42-1 



39- 4 



40- 5 

 39-6 

 39 1 

 39-5 



42-0 



39- 1 



40- 4 

 39 6 



38- 8 



39- 1 



419 



39- 4 



40- 3 

 39 -4 

 38 -3 

 38-7 



41-3 



38- 7 



39- 7 

 38-6 

 38-4 

 38-1 



41-3 



37- 8 



38- 7 

 36'8 

 37-7 

 38*0 



40'9 

 37'1 

 37'5 



36- 1 

 36 -9 



37- 5 



39-6 

 36'8 

 36 '4 

 35 -9 

 36-1 

 36-8 



38 9 

 37 3 

 36-5 

 35 -7 

 36-4 

 36-6 



40 2 

 39-1 

 37-6 



36- 1 



37- 8 

 38 1 



42 2 

 42-2 



40 *2 

 38'4 

 40-5 



41 3 



44- 9 



45- 4 1 



42- 9 1 

 41-2 1 



43- 6 1 

 44*9 1 



Mean. 



40-4 



40-0 



39*8 



39-7 



391 



38-4 



37 7 



36-9 



36 9 



38 -2 



40 -8 



43-8 1 



Table II. — Solar Diurnal Range of the Kew 1 



Hours 



Mid. 



i. 



2. 



3. 



4. 



5. 



6. 



7. 



8. 



9. 



10. 



11. 1 



Summer Mean. 1 

























/ 











-0-7 



-i-i 



-1-3 



-1-4 



-2-0 



-2-7 



-3-4 



-4-2 



-4-2 



-2-9 



-0-3 



+ 2-7 1 



"Winter Mean. 











/ / 



i 

















-1*1 



-0'9 



-0-8 



-0-5 -0-6 



-0 7 



-1-0 



-1-5 



-2-1 



-20 



-0-7 



+ 1-5 



Annual Mean. 





















t 





-0-9 



-1-0 



-11 



-1-0 



-1-3 



-1-7 



-2 2 



-2-9 



-32 



-2-5 



-0-5 



+ 2-1 



Note. — When the sign is + the magnet 



