112 Report of the Kew Observatory Committee. 



Table III. — Hourly Means of the Horizontal Force in C.G.S. units (corrected 



(The Mean for the 



Hours 



Preceding 



Mid. 



1. 



2. 



3. 



4. 



5. 



i 

 6. 



7. 



8. I 



1 



9. ! 



1 



10. 



11. | 





noon. 































•18000 + 









Winter. 



















1896. 































Months. 































Jan. . . . 



284 



297 



300 



299 



300 



304 



304 



306 



307 



308 



300 



294 



292 





Feb. ... 



280 



299 



297 



296 



296 



299 



302 



304 



302 



301 



294 



288 



282 





March . . 



279 



299 



300 



301 



301 



300 



301 



301 



299 



292 



282 



278 



275 





Oct. ... 



304 



326 



325 



324 



323 



325 



325 



324 



321 



315 



307 



301 



300 





Nov. . . . 



308 



320 



319 



319 



319 



320 



322 



324 



322 



319 



314 



309 



307 





Dec. . . . 



310 



318 



318 



319 



319 



320 



322 



323 



324 



324 



322 



318 



317 





Mean . . 



294 



310 



310 



310 



310 



311 



313 



314 



312 



310 



303 



298 



295 





Summer. 





April . . . 



281 



306 



306 



306 



309 



310 



308 



311 



308 



301 



290 



283 



280 





May ... 



278 



304 



303 



303 



302 



302 



302 



300 



296 



290 



287 



285 



284 





June . . . 



292 



310 



307 



306 



305 



306 



306 



301 



294 



•290 



287 



287 



295 





July .. . 



300 



323 



322 



322 



322 



322 



321 



317 



313 



307 



303 



300 



303 





Aug. . . . 



29H 



317 



316 



315 



313 



311 



311 



309 



305 



294 



287 



283 



287 





Sept. . . . 



295 



3L2 



313 



313 



312 



311 



310 



307 



299 



288 



278 



275 



281 





Mean. . 



291 



312 



311 



311 



311 



310 



310 



308 



303 



295 



289 



286 



288 





Table IV. — Diurnal Inequality of the Kew 



Hours 



Mid. 



1. 



2. 



3. 



4. 



5. | 6. 



7. 



8. 



9. 



10. j 11. 



1 



Summer Mean. 



' + '00003 



+ -00002 + -00002 



1 



+ -00002 + -00001;+ -00001 j - -00001 



- -00006 



- -00014 



- -00020 - -00023 



- -00021 



Winter Mean. 





+ -00001 



+ -00001 



+ -ooooi|+ -ooooi 



+ -00002 



+ -00004 



+ -00005 



+ -00003 



+ -ooooi 



- -00006 - -00011 



- -00014 





Annual Mean. 





1 



+ -00002! + -00002 



+ -ooooi + -00001 



+ -00002 



+ -00002 



+ -00002 



- -00002 - -00007 



- -00013 



- -00017 



- -00017 



Note. — When the sign is + the 



