100 



Extra Obsekvations of Magnetometers, February 3 — 5, 1844. 



Feb. 4'' l* (Sunday). In the observations given the magnets have not changed their positions much, but there is evidently a disturbance : 

 ibe declination and bifilar magnets are vibrating much and irregularly. At i" 7' -50» a moderate disturbance was noticed, such as on several 

 preceding evenings. 



