444 



The National Physical Laboratory. 



APPENDIX Ia. 



Mean Values, for the years specified, of the Magnetic Elements at Observatories 

 whose Publications are received at the National Physical Laboratory 



T inn crif'.n r\ a 



J-J \J 11 ci 1 v LL LI t? • 



Year. 



Tipplinnf inn 



Inclination. 



Hori- 

 zontal 



C.G-.S. 

 Units. 



Vertical 

 Force 



c.a.s. 



Units. 



O / 



30 29 E. 



1898 



o / 



30-3 E. 



o 



/O 





•16522 



•47077 



60 38 E. 



1898 



9 55 -6 E. 



70 



40 "2 K 



•17802 



•50752 





T1894 



7 39-7 E. 



68 



37 -5 K". 



•18572 



•47451 





J 1895 



7 43-8 E. 



68 



35 5 N. 



•18580 



•47390 



49 8 E. 



) 1896 



7 47-1 E. 



68 



33 -7 N. 



•18605 



•47381 





[.1897 



7 54-8 E. 



68 



34 -8 N. 



"18616 



•47454 



12 34 E. 



1899 



10 15 -8 W. 



68 



40 N. 



•17490 



•4478 





f 1899 



18 ] 7 '7 W. 



68 



51 -8 K 



'17273 



"44677 



2 28 W. 



\1900 



18 10-9 W. 



68 



50 -3 N. 



•17312 



•44720 



10 3 E. 



1896 



11 36 -7 W. 



67 



38-8 sr. 



•18061 



•43921 



8 9E. 



1899 



12 31 -9 W. 



67 



45-0 N. 



•18072 



•44173 



13 4E. 



1899 



10 -7 W. 



66 



33 -3 N. 



•18818 



•43392 



104 16 E. 



1898 



2 2-6E. 



70 



13-2 N. 



•20137 



•55991 



5 HE. 



1898 



13 59 1 W. 









•18487 



— 



19W. 



1900 



16 52-7 W. 



67 



11-8 N. 



•18428 



•43831 





f 1899 



16 34-2 W. 



67 



10 '2 N. 



•38419 



•43754 







\ 1900 



16 29 -0 W. 



67 



8'5 N. 



•18450 



•43764 



4 21 E. 



f 1899 



14 18-3 W. 



66 



13 '2 K 



•18938 



•42978 





\ 1900 



14 13 -6 W. 



66 



9 -8 K 



•18952 



•42896 



5 5W. 



1899 



18 32 -7 W. 



-66 



48-7 N. 



•18663 



•43569 



14 25 E. 



1899 



9 11 -9 W. 







•19926 



— 



2 5W. 



1900 



16 59 -7 W. 



65 



45-5 N. 



— 



— 



2 29 E. 



1897 



14 58 -6 W. 



64 



59 6 N. 



•19717 



•42270 



16 21 E. 



1898 



8 24*1 W. 







•20797 





18 12 E. 



1900 



7 28 -8 W. 







•21153 





30 46 E. 



1898 



4 41 -5 W. 



62 



30 -5 jF. 



•22033 



•42341 



15 51 E. 



1899 



9 25 -7 W. 







•22135 



•38900 



7 16 E. 



1899 



12 4 -0 W. 



60 



11 -7 sr. 



•22390 



•39087 



79 30 W. 



1897 



4 53 -0 W. 







•16650 





2 53 E. 



1897 



13 51 -3 W. 



60 



3-5 N. 



• 22440 



•38959 



44 48 E. 



1897 



1 59 -0E. 



55 



48 -3 1ST. 



•25664 



•37770 





f 1898 



9 22 -6 W. 











14 15 E. 



\ 1899 



9 15 -8 W. 













[ 1900 



9 10 -2 W. 











3 40 W. 



1897 



15 56 -9 W. 











8 25W. 



1899 



17 24 -2 W. 



59 



28 '9 N. 



•22724 



•38549 



77 4W. 



1894 



3 39 -9 W. 



70 



34-3 N. 



•19979 



•56646 



9 9W. 



1900 



17 18 -0 "W. 



57 



54'8 IS". 



•23516 



•37484 



139 45 E. 



1897 



4 29-9 W. 



49 



2-8 B". 



•29816 



•34356 



Place. 



Pawlowsk 



Katharinenburg 



Kasan 



Copenhagen . . . 



Stonyhurst .... 



Hamburg 



Wilhelmshaven 



Potsdam 



Irkutsk 



de Bilt (Utrecht) 

 Kew 



Greenwich. 



Uccle (Brussels) 



Falmouth 



Prague 



St. Helier (Jer- 

 sey) 



Pare St. Maur 

 (Paris) 



Vienna 



0'Gyal]a(Pestb)j 



Odessa 



Pola* 



Nice ....... 



Toronto 



Perpignan . . . 



Tiflis 



Latitude. 



59 41 K 

 56 49 N. 



55 47 N. 



55 41 K 



53 51 N. 



53 34 N. 



53 32 1ST. 



52 23 IS. 



52 16 N. 



52 5 JS". 



51 28 N. 



51 28 N. 

 50 48 K". 



50 

 50 



9 Is T . 

 5 N. 



Capodimonte \ 

 (Naples) . . J 



Madrid | 40 25 N. 



Coimbra 40 12 N. 



Washington . . I 38 55 N. 



Lisbon 38 43 1ST. 



Tokio 1 35 41 N. 



49 12 N. 



48 49 N. 

 48 15 N. 

 47 53 N. 

 46 26 1ST. 

 44 52 N. 

 43 43 N. 

 43 40 JS T . 

 42 42 N. 

 41 43 BT. 



40 52 N. 



* The vertical force is mean from months June to December only. 



