630 



APPENDIX. 



No. II. Showing the Mean (daily) Variation and Temperature observed at Fort Reli- 



Seven 



Month. 



Year. 



8h A.M. 



October 22. to 28. 



1 833. 



47 08 e. 



Tem. 



9h A.M. 



Tem. 10h a.m. 



Tem. 



llh A.M. 



Tem. 



+ c " + 



5( ix. 25 64 27 51 e. 25 71 



4 00 e. 126 14 



Month. 



October 22. to 28. 



Note. — At 9 h a.m. the needle was generally agitated. At 10 h it vibrated once. At ll h 

 steady. At 5 h once tremulous. At 6 h twice tremulous. At 7 h thrice tremulous. At 

 At midnight twice tremulous. 



No. III. Showing the Mean Variation and Temperature, observed at Fort Reliance, 



Month. 



April 23. to 29. 



Year. 



8h A.M. 



1834. 



i a 

 27 43 e. 



Tem. 



9h A.M. 



+ 



/ // 



16 2l24 25 e. 



Tem. 



10h A.M. 



Tem. 



+ 



llh A.M. 



' // 



17 216 17e. 18 00 11 34 e. 



Tem. 



+ 

 18 8 



Month. 



April 23. to 29. 



Year. 5h p.m. 



1834. 



/ // 

 5 17 w. 



Tem. 6h p.m. 



' // 



22 5 



5 26 w. 22 40 



Tem. 



+ 



7 h p.m. i Tem. 8h p.m 



' // 



+ 



/ ii 



Tem. 



3 26w.22 00 1 25w.22 00 



Note. — At 8 h a.m. the needle was once moving. At 9 h twice agitated. At 10 h twice 

 At 3 h steady. At 4 h once agitated. At 5 h once tremulous. At 6 h twice agitated, 

 once vibrating. Midnight, moving twice. (Aurora visible only three times.) 



No. IV. Showing the Mean Variation and Temperature, observed at Fort Reliance, 



