548 



APPENDIX. 



[No. II. 



Day*. I 8 A. M. 



1 



2 



3 



4 

 5 

 6 



7 



8 



9 



10 



11 

 12 

 13 

 14 

 15 

 16 

 17 

 18 

 19 

 20 

 21 



23 

 24 

 25 

 26 

 27 

 28 

 29 

 30 



o 

 17 



14 



17 13 

 17 15 

 17 15 

 17 16 

 17 17 

 17 16 

 J7 16 

 17 16 



22 17 16 



17 23 

 17 17 

 17 17 

 17 16 

 17 16 

 17 16 

 17 16 

 17 15 



APRIL, 1820. 





IP. M. 



o 

 17 



9 



17 8 

 17 8 

 17 9 

 17 9 

 17 9 

 17 10 

 17 9 

 17 10 

 17 9 

 17 8 

 17 9 

 17 10 

 17 9 

 17 9 

 17 8 



4 P. M. 



12 P. M. 



o 

 17 



10 



17 8 



17 10 



17 11 



17 II 



17 II 

 17 12 

 17 11 

 17 8 

 17 11 

 17 9 

 17 10 

 17 12 

 17 9 

 17 7 

 17 9 



17 11 

 17 14 

 17 14 

 17 16 



17 

 17 

 17 



15 

 28* 

 1* 

 17 10 

 17 15 

 17 14 

 17 15 

 17 14 

 17 14 

 17 13 

 17 14 

 17 14 



17 8 17 8 



17 7 17 7 I 17 14 



1 

 2 



3 



4 



5 



6 



7 



8 



9 



10 



11 



12 



13 

 14 

 15 



16 

 17 



18 



19 



20 



21 



22 



23 



24 

 25 

 26 

 27 

 28 

 29 

 30 

 31 





MAY. 



Days. I 8 A.M. 



1 P.M. 



O 



17 



8 





o / 



17 16 



17 34* 



17 17 



17 16 



17 16 



17 16 



17 15 



17 17 



17 17 



17 18 



17 17 



17 18 



17 16 



17 18 



17 18 



17 18 



17 17 



17 17 



17 17 



17 18 j 



17 17 I 



17 18 



17 19 



17 25* 



17 17 



17 16 



17 17 



17 17 



17 16 



17 17 I 17 7 



17 9 



17 8 



17 8 



17 7 



17 7 



17 7 



17 8 



17 8 



17 9 



17 8 



17 8 



17 8 



17 8 



17 8 



17 8 



17 9 



17 9 



17 8 



17 8 



17 8 



17 8 



17 9 



17 8 



17 7 



17 7 



17 16 



17 7 



4 P- M. 



o 

 17 



9 



17 10 



17 9 



17 8 



17 7 



17 7 



17 7 



17 8 



17 8 



17 9 



17 8 



17 8 



17 8 



17 8 



17 8 



17 8 



17 9 



17 9 



17 9 



17 8 



17 S 



17 8 



17 10 



17 9 



17 7 



17 7 



17 7 i 17 7 



17 7 17 8 



17 7 17 8 



i7 7 



17 7 



12 P. M. 



O / 



17 0*] 



16 52*1 



17 14 

 17 14 

 17 14 

 17 14 

 17 15 

 17 15 

 17 15 

 17 16 

 17 15 

 17 15 

 17 16 

 17 

 17 



17 15 

 17 15 

 17 14 

 17 16 

 17 15 

 17 15 



15 

 16 



17 

 17 



16 

 33* 



17 14 



17 13 

 17 14 

 17 14 



16 54*1 



17 14 

 17 14 

 17 15 





♦he ZlT SS^.*? a £ 1 m3 l ed With a ? ^ erisk » the Auryra had approached, or passed, 

 ^^^^7Z^T^ CaUSC ^ thC iDCreaSed 0r dimi »^ d variation. The varial 

 vZhfr Z r fill ft ° f ¥eh ' u ^ is » that w ^ch was observed by Mr. Franklin in No- 

 ^ mnnfi !f Sh I ^^ ** a , fte T wards Pitting the use f of instruments, until 



«\tS Q A iftl l^ » ST"** tha * the S^test variation ™s found between 

 %Ti aIx ^. • CaSt v t l F 'H- The need ^ was nearly stationary during the heat of 



tne day ; and the variation, then gradually increased until thenext morning-, if the needle 



£™m T^i R ? e t hy thC , Aurora ' and bv some ""avoidable unsteadiness, the variations 

 would probably have been much more regular. The most striking circumstance in these ob- 



LondrVnA ^fS^ th « ^ varies, and is stationary, at the same hours here, in 



wSn^r . * ? u T a A ra ' *^ ,awS Which S° vern }t are exac % reversed; the variation 

 men^ fifn , f ^ ""«* P«fod, instead of least ; and vice versd. For this pheno- 

 menon it is not, perhaps, difficult to account on Dr. Lorimer's principles. 

 1 he annual variation seems to be inconsiderable. 



counHhir a Tj!!» S tb ! di PP in fT needle were, also, observed; but they differed very unae- 



™*^£Z™V™& from 10 ' t0 25 ' ; and the d * *» ^y leastinthc 



