177 



ßrit. Assoc. in 1852) ^eift eö: it is a remarkable facl, which 

 has been established, Ihat thc magnetic force is grealer in botb 

 the nortbcru and soulhern bcmispheres in the months of De- 

 cember. January and February, when the Sun is hearest lo Ihe 

 earth, than in those of May, June and July, when he is most 

 distant from il: whereas, if the eßects were due to temperature, 

 Ihe two hemispheres should be oppositely instead of similarly 

 affecled in each of the two periods referred to. 



" (®. 81.) 2anioutin<p o g 9 e n b.Slnnalen 95b. 84, 6.579. 



" (@. 81.) ©abine on periodical laws discoverable 

 in Ihe mean effects of the larger magnetic Distur- 

 bances, in bcn Phil. Transact. for 1852 P. I. p. 121. (Äo^s 

 moö 58b. IV. @. 73 Sflo. 9.) 



" (@. 81.) Äoömoö 95b. III. @. 402. 



« (@. 82.) 91. a. O. @. 238. 



*• (®. 82.) Äreil, einflu^ bc^ «»fonbeö auf bi« 

 maguetifdje ©eclination 1852 @. 27, 29 unb 46. 



«" (@. 83.) Äoömoö S8b. I. @. 407 Odim. 55 unb, «uf bu 

 ?Weteorfleine angeivanbt, @. 137; nie 95b. III. @. 594. 



** (@. 84.) SSergl. ^att> ®omer»ille in il>rcr furjen, 

 aber licbtwollen, auf ©abine'ö Qlrbeiten gegrünbeten ©arfieüung 

 be^ erb^^JJfagneti^^muö, Physicai Geography Vol. II. p. 102. 

 ®ir 3ol)n Hio^, ber biefe Qutn fc^wd elfter 3ntenftrdit auf feiner 

 grofen antarctifd)en (Srpebition 3)ec. 1839 burd)fc^nitr (lat. 19° 

 fübl. unb long. 31° 35' iveftl.), unb i>A6 gro^e 93erbien|l I)at i^re 

 2age in ber fübUd^cn .^emifpbdre jueriT: beiKmmt ju (>aben, nennt 

 jte ben Equator of less intensity. ®. bejfen Voy. 10 the Sou- 

 thern and Antarctic Regions Vol. I. p. 22. 



*• (@. 84.) nStations of an intermediate character situated 

 beetwen the northern and southern magnetic hemispheres, par- 

 taking, although in opposite seasons, of those contrary features 

 which separately prevail (in the two hemispheres) Ihroughoul 

 the year.« @abine in ben Phil. Transact. for 1847 P, I. 

 p. 53 unb 57. 



»° (S. 85.) 2)er Pole of Intensity ifV ni*t ber Pole of Ver- 

 ticity; Phil. Transact. for 1846 P. III. p. 255. 



»' (@. 85.) ®au^, allgem. ^^corie beö Srbmags 

 nctiömuö § 31. 



a. ». ^umiolbt, Är«mc«. IV 12 



