199 



" (@. 128.) Äupffer, Voyage au Wont Elbruz dans 

 le Caucase 1829 p. 108: »Les deviations irregulieres se repe- 

 tent souvent ä la meme heure et pendant plusieurs jours con- 

 secutifs.« 



'* (@, 129.) (Sabine, Unusual Disturb. Vol. I. P. 1. 

 p. XXI, imb 5}oitn9t)Uöbanb on periodical Laws in the 

 larger Magnetic Disiurbances in ben Phil. Tr. ior 1853 

 P. I. p. 173. 



'^ (@. 129.) ©abine in ben Phil. Tr. for 1851 P. I. p. 125 

 biö 127: )/rhe diurnal Variation observed is in fact constituted 

 by Iwo variations snpeiyosed upon each other, having different 

 laws and bearing different proportions lo each other in different 

 parls of the globe. At tropical stations the influcnce of what 

 have been hitherlo calied the irregulär disturbances Ci^aynetic 

 storms), is comparatively fceble; but it is otherwise at stations 

 situated as are Toronto (Canada) and Hobarlon (Van Diemen- 

 Island), where iheir influenae is bolh realiy and proportionally 

 greater, and amounts to a clearly recognizable part of the whole 

 diurnal Variation.« (E6 finbet ^ier in ber jufammengere^ten 2Bir: 

 fung 9leid}5eiti9er, aber »erfc^iebener ^eiveönngö^Urfad^en bafT^lbe 

 ftatt, wa6 üon ^^oijTon fo fd)ön in ber ^I)eorie ber 2B eilen ent= 

 tvicfelt ifl (Annales de Chimie et de Physique T. VII. 

 1817 p. 293): »Plusieurs sorles d'ondes peuvent se croiser dans 

 l'eau comme dans Fair; les petits mouvemenls se superposent.n 

 2}er9l. £amonf ^ ^^erinut^ungen über bie äufammenöefeßte SSirfung 

 einer ^Hlar- unb einer 9(equatorial--2Belle in ^^poggenb. 

 Qtnnalen 3?b. 84. @. 583. 



'' (6. 130.) @. oben @. 87 mm. 69. 



'' (@. 130.) (Sabine in ben Phil. Tr. for 1852 P. II. p. 110. 

 (5)onn9l)ni^banb a. a. 0. p. 169.) 



"^ ((5. 131.) TiCid) Samont unb 9ie(^^l)nber ii^ bu magnetifdje 

 ^eriobc lO'/s 3a{)re: fo tn^ tic ®röpe be(^ ?0?irtel^ ber ta9lid)en 

 ^eivegung ber ^^tabel 5 3al)re l)inburrf) ju-- unb 5 3a^re Mnbnrc^ 

 abnimmt, ivobei bie tüinterlid^e 5^ejvegnng (amplitudo ber Qtbivei^ 

 d^ung) immerfort faft boppelt fo fc^ivad) ali^ bk ber (Sommermonate 

 i|l. (33er9l. Samont, 3al)reeberid)t ber @ternn>arte ju 

 g)?ünc^en für 1852 (S. 54— 60.) 3)er 3:;irector ber 58erner (Stern ^ 

 njarte, ^err Ofiubolpl) ®olf, finbet burd) eine viel umfaiJenbere 



