MAGNETIC OBSERVATIONS AT THE KEW OBSERVATORY. 

 Table II. — Declination. Lunar-diurnal Variation in Seconds of Arc. 



449 



Table III. — Horizontal Force. Lunar-diurnal Variation in parts of the Force at the 



Station. 



The mean Horizontal Force at Kew is approximately 3-8 in British units. 



MDCCCLXVl. 3 B 



