177 



ßrit. Assoc. in 1852) l)ei$t e^: it is a remarkable fact, which 

 has been established, that the magnetic force is grealer in both 

 thc northcrn and soulhern hcmispheres in the monlhs of De- 

 cember, January and February, when Ihe Sun is nearest lo the 

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

 distant from it: whereas, if the ett'ecls were due to temperature, 

 the two hcmispheres should be oppositely instead of similarly 

 aftected in each of the Lwo periods referred to. 



" (@. 81.) Samontiu^;^ o ggen b.ainnalen35b.84. @.579. 



*^ (@. 81.) (Bc^^inc on periodical laws discoverable 

 in the mean effects of the larger magnetic Distur- 

 bances, in beit Phil. Transact. for 1852 P. I. p. 121. {^oi-- 

 mo^ q3b. IV. a. 73 9?o. 9.) 



«* (@. 81.) ^o^moö q3b. 111. @. 402. 



«^ (®. 82.) 5(. a. O, @. 238. 



^« (@. 82.) ^veii, etnflu^ beö 5)?onbe^ auf bie 

 magiutifdje 2)ecliuatiou 1852 @. 27, 29 unb 46. 



*■ (@. 83.) .!lo^moö 93b. I. ®. 407 2lum. 55 unb, auf bk 

 9)ieteor|l;eine angetvanbt, @. 137; wie 33b. III. @, 594. 



** (@. 84.) ^ergl. 9)?an) @om er utile in il)rer furjeu, 

 aber licbtrollen, auf (Sabine'^ Qlrbeiten gegriinbeteu 2)ar|lellun9 

 beö (5rb-'97ia9uetiömu^, Physical Geography Vol. II. p. 102. 

 @ir 3ol)u Oio^, ber biefe (5uröe fc^iyäc^jler Sntenfttat auf feiner 

 großen antarctifd)en (Srpebition 5)ec. 1839 burc^fd^nitt (iat. 19° 

 Ü'ibl. unb long. 31° 35' weftl), unb ba^ gro^e 33erbteniT; t)at il)re 

 Sage in ber fübltrf)en .^emifpl)äre juerfl beflimmt ju l)aben, nennt 

 (ie ten Equalor of !ess intensity. <B. beffen Voy. to the Sou- 

 thern and Anlarctic Regions Vol. 1. p. 22. 



*' (@. 84.) ):>Stations of an intermediate character situated 

 beetweu the northern and southern magnetic hcmispheres, par- 

 taking, although in opposite seasons, of those contrary features 

 which separately prevail (in the two hemispheres) throughout 

 the year.« ©abtue in ben Phil. Transact. for 1847 P. I. 

 p. 53 unb 57. 



'° (e. 85.) 2)er Pole of Intensity t(t nid?t ber Pole of Ver- 

 ticily: Phil. Transact. for 1846 P. 111. p. 255. 



'• (@. 85.) ®au^, allgem. ^l)eorie beö ^rbmag.- 

 uett!^muj5 5 31. 



91. ». ^umbolbt, J?r8mr3. IV i2 



