624 APPENDIX. 



February 8th. — At 9^ a.m. the needle was at 0° 37' 

 E., agitated. The weather was clear with a cloudless 

 sky and bright sun, when at noon I found the needle 

 in rapid motion from 2° 10' E. to 2° 50' E., 2° 20' E., 

 2° 50 E., 2° 20' E., 2° 40' E., 2° 10' E , 2° 00' E., 

 2° 10' E., 2° 00' E., very slow to 2° 20' E., 2° 08' E„ 

 2° 25' E., 2° 15' E., 2° 20' E., where it remained steady 

 five seconds, then moved again to 2° 25' E., 2° 20' E., 

 2° 30' E., and slowly to 2° 28' E., quicker to 2° 35' E., 

 2° 25' E., 2° 32' E., 2° 22' E., 2° 34' E., 2° 25' E., 

 2° 42' E., 2° 26' E., 2° 38' E., 2° 20' E., 2° 32' E., 

 2° 24' E., 2° 33" E., 2° 20' E., 2° 24' E., 2° 14' E., 

 2° 20' E., 2° 05' E., 2° 12' E., 2° 04' E., 2° 16' E., 

 2° 18' E., 2° 15 E., 2° 14' E., 2° 20' E., 2° 15' E., 

 2° 20' E., 2° 18' E., 2° 22' E., where it kept still 

 moving, but very slowly. 



Time at beginning 6 h 10 m 40 s 



ending 6 21 10 



Interval 10 30 



Temperature, observatory, — 9J°, air, -—1 1°, sun, 

 4- 23° ; nothing perceptible in the sky. 



