THE DISTUPvBAXCE OF ISOMAGXETICS. 



173 



Nagoya : December 25/2 Chronometer mean solar, No. 1594 Negus. 



Observer, A. Tanakadate 



Star. 



«Teg- 



rPeg- 



i Cassiop. ... 

 A Draco, x.p. 



I Andro 



oj- Aquil 



II H. Ceph... 







li°38' 

 23° 0' 

 61°i2' 

 G9°55 

 42''40' 

 -15° 9' 

 07° 1 3 



'J'(o)>s.) 



!i m s 



5 53 53.64 



u 9 46.0:1 



6 14 29.88 

 6 19 26.61 

 6 27 15.90 

 6 31 32.7:; 

 G 37 11. OC 



Eh. 



-0.27 

 -0.3f' 

 -0..53 



+ 0;4-- 

 -0.73 

 -0.3C 

 -LIS 



|'/-'r(oornl. ) 



h m s 

 3 54 27.74 



28.04 



28.08 



27.07 



27.56 



28.01 



30.02 



+ 0.363 



+ 0.224 

 -0.941 

 + 2.811 

 -0.177 



+ 0.797 



C 



+ 1.033 

 + 1.08( 

 + 2.101 

 + 2.91- 

 -1.36( 

 -1.03( 



-1.37('; -2.581 



Observations redaced to 28 25. local sidereal time 



AVbenco 



+ 4.741 c + 0.459« = 2.8L 

 + 9.199 c + 0.396« = L78 



a=-- + a30 - 4."5 ; 



c = + 0.18 



Azimuth reading 61° 7' 50" 



+ 5" 



Meridian readino- or 7' 55" 



A gdîuice al the list of me:in vîïlues will show that tliere is a change 

 in all the element.s, which are of ditîerent mag-nitude in différent .sta- 

 tions. In order to make this change more iiitelligible we ha\e drawn 

 isomagnetic charts of the region, Ijotli from the pre\ious and the present 

 resnlts. AltlKXigh we !)y no means pretend that the number of stafions 

 was sufficient to exhibir the actual magnetic condition of the district 

 with detail, yet we believe tliat these lines are not fir from represent- 



