MAGNETIC OBSERVATIONS 



297 



tioB, as also the approximate correspondiog mean suo-spot frequeocies according to Dr. Wolf 

 and Professor Wolfer,* are as follows : 



I 



2 



3 

 4 

 5 



6 



7 

 8 



9 

 lo 

 II 



12 



13 

 14 

 15 

 i6 



17 

 i8 



19 



20 

 21 

 22 



'3 



24 

 25 



station 



Fort Conger, Grinnell Land. 



Kingua Fjord, Cumberland 

 Sound 



Latitude 



TepUtz Bay, Rudolph Island. 

 Ssagastyr, Siberia 



Fort Rae, Great Slave tilce, 

 Canada 



Ooglaainie, Alaska 



Cape Thordsen, Spitzbergen.. 



Jan Bfoyen island 



Kannakul Bay, Novaia Zemlia. 



Bossekop, Norway 



Sitka, Alaska 



foroJito, Canada 



Sodankla, Finland 



Bkaterinburg, Sib^ia . . ... 



De Bilt, Netherlands 



Los Angeles, United States... 



Key West, United States 



2i-ka-wei, China 



Coldba, India ,..,...... 



St. Helena Island 



Bniteiizorg, Java 



South Georgian Island 



Cape «f Good Hope, Africa. . . 



Mauritius Island 



Hobartoa, Tasmania 



8i 44 N 



66 36 N 

 81 47 N 

 73 23 N 



62 39 N 

 71 18 N 

 78 28 N 



71 00 N 



72 23 N 

 69S8N 

 57 03 N 

 43 39 N 



67 24 N 

 5« 49 N 

 52 06 N 

 34 03 N 

 24 33 N 

 31 12 N 

 1854N 

 iS 57 S 



4 ij S 

 5431S 

 3356S 

 20 06 S 

 42 52 s 



Longitude 



east of 

 Greenwich 



29s 16 



292 41 



58 09 



126 36 



244 46 

 203 20 



15 42 

 351 32 



52 42 



23 IS 

 224 40 

 280 36 



26 36 



60 38 



5 II 



241 45 



278 12 



121 36 



72 49 

 3S4 20 

 tt)6 50 

 324 00 



18 29 



57 33 

 147 28 



Magnetic 

 inclina- 

 tion 



85 01 N 



83 51 N 

 83 12 N 

 83 09 N 



82 54 N 

 81 24 N 

 80 27N 

 79 00 N 

 7843N 

 76 26 N 

 75 55 N 

 75 15 N 

 74 48 N 

 70 39 N 

 66 sr N 

 59 30 N 

 54 32 N 

 45 42 N 

 21 30 N 

 21 59 S 

 30 33 S 

 48 58 S 



53 21 S 



54 51 S 

 70 36 s 



tic 

 latitude 



Observations 



80 06N 



77 50 N 

 76 35 N 

 76 29 N 



76 01 N 

 73 10 N 

 71 24 N 

 68 45 N 

 68 15 N 

 64 14 N 



Aug., 1882, to July, 1883. . . . 



Oct., 1882, to Sept., 1883... . 

 Oct., 1903, to June, 1904. . . 

 Jan., 1883, to Dec., 1883 



Oct., 1882, to Sept., 1883. . . 

 Sept., 1882, to Aug. 1883.. . . 

 Sept., 1882, to Aug., 1883,. . 

 Sept.. 1882, to Jnly, 1883.... 



Oct., 1882, to Aug., 1883 



Aug., 1882, to July, 1883. , , . 

 Irregular series, 1848 to 1862. 

 July, 1842, to Jtlne, 1848 . . 

 Sept., 1882, to Aug., 1883. . . 

 Jan., 1893, to Pec, 1893 

 Jan., 1903, to Dec, 1903. . . 

 Oct , 1882, to Oct., 1889 . . . . 

 March, i860, to March, 1866. 



Jan., 1901, to Dec, 190! 



Jan., i90i,toDec., 1901 



Sept., 1842, to' Aug., 1847. : 



Jan., 1904, to Dec, i$o4 



Sept., 1882, to Aug., 1883 .. 

 April, i84ii to June, 1846. . . 



Jan., 1883, to Dec, 1883 



Jan., 1841, to^ept., 1848 



u 5 



Sf o 



,- a a 



« 3 4j 



59 



60 



(80) 



64 



60 

 60 

 60 

 60 

 60 



59 

 (60) 



J 



51 

 60 



83 

 {60) 



36 



57 

 (10) 

 (10) 



38 

 (80) 



60 



29 



64 

 49 



Tlie rMereaces for each of the above series are as follows : 



Fori Conger, Grinnell Z.art</— International Polar Bxpeditioti to Lady Franklin Bay, Grin^ 

 nell Ifimdi by Liettf. A. W. Gueely. (Volume 2, reduction of magnetic observations by C. A. 

 SchotL) Washington, 1888. 



* As collected and plotted by Mr. W. Ellis in his paper on the relation between diurnal range of magnetic 

 declination and horizontal force and solar spots (Proceedings of the Royal Society. Volume 63, pp. 64-78). 

 The values after 1896 are exterpolations based on Mr. EUis' curves ; these are indicated by enclosure in paren- 

 theses. 



