191 



Fort Rae. 



X = - 115° 43' 50" = - 7h. 42m. 55s. 



Gottingen Mean Time. 



March 1, 1883. 



b. m. 



A.M. 



8 20 

 8 30 



9 5 

 9 15 

 9 



Horizontal Intensity. 



Declination. 



5 10 

 4 58 



55 



52 



40 

 44 

 54 

 54 

 55 

 I 



34 

 58 

 58 



17 



4» 

 47 

 45 

 44 

 56 

 10 

 21 

 26 

 48 

 48 

 18 

 58 



52 



3o 



54 

 34 

 14 

 24 

 i5 

 o 



32 



46 



10 



29 



5o 

 12 

 28 

 12 



3 

 16 

 10 



3 

 53 



54 



55 



3o 



34 

 22 

 22 

 24 



I 54 



2 16 



2 16 



2 18 



2 16 



2 9 



12 

 16 



19 

 23 



19 



9 



2 l3 

 2 17 

 2 l5 



9 



16 

 6 



Vertical Intensity. 



9 

 9 

 10 



10 15 



10 SO 



10 40 



10 50 



11 10 

 11 20 



11 55 

 P.M. 



13 5 



13 15 



13 20 



12 :« 



1 5 



1 23 



1 :io 



1 10 



2 10 



Auroral Observations. 



Aurora band (2) prismatic, and moving witli great rapidity in circular motions. , .. , t. ^ -vr i c -j * xt 



arcli (2), stri,ated and slightly prismatic from E.S.E. through zenith to N.W., about 10' wide; N. side of arch pulsatmg from E. to N., and S. sido from N. 



towards S. 



Irregular f 



Irregular -ircli (I'd) from E.S.E. to W., appearing lilce contused masses in E.S.E., and forltcd in W., from 60° alt. in S. to zenith. A few faint streamers C?) from E.S.E. 



to E.N.E., 10' alt. , , . ., ^. , , .. 



Streamers disappeared. Arch (-5). A lower arch from E. to N.N.W., 30' alt. with bright, prismatic, streamers (2) m rapid motion and pulsating. 

 Arches faint ('5) and in confused masses, the sky from E.S.E. to W.N.W. and zenith more or less covered with aurora from 10 alt. in N.Jl. 



„ drifting towards S. and like small cumulus clouds in N.E. _ ^ „ ,,^ 



Above disappeared. Arch (-5) from S.E. to S.W., 30° alt. A few faint streamers (-5) from N.N.W. to N.E., from 15° to 30' alt. 

 Above arch very faint. 10' alt. Streamers .as before. Paint masses in zenith. ..... ,r 



disappeared. Arch ('5) from E.S.E. to W.S.W., 10° alt. in S. Band (-7) with streamers from same points, 5° alt. in N. 

 Aurora CT) from E.S.E. to zenith, and extending in a circle to E.S.E. and thence in a bright horizontal line (1) to N.fc. Patch ("5) in .'5. 10 alt. 

 Faint masses of aurora ('5) on horizon and to 5° alt. all round except in W.S.W. 



Faint aurora (-5) from S.W. to S.E., 8° alt. Bank of aurora (1) in rapid motion from N.W. to E.S.E., from 3' to 9' alt. 

 Bank disappeared, a few patches ( '5) on N. horizon. Aurora from S.W. to S.E. as before. 

 Very faint patch on N. horizon. Auroi-a as above. 



Irregular aurora (1) from N. to N.N. W., 8' alt. Aurora from S.E. to S.W. as before, but fainter (-2), and 5' alt., till 11.35. 

 Faint arch CS) from N.N.E. through zenith to 10° S.W. of zenith. 



Irregular aurora (1) from S.W. to zenith, and a few patches f "5) on N. of zenith. 

 Irregular diffused aurora (1) from W.S.W. to S.E.. 30' alt. 



Irregular aurora (1) from W. through zenith to E.S.E., striated and pulsating in all directions, about 10° either side of zenith. -.tut-ht jutxt 



Irregular arch (I'S) from 40' alt. E.S.E. through zenith to W., drifting S. Patch (1) on N.N.W. horizon. 12.50. Disappeared. Faint masses ( 8) m N.N. W. and W.W., 

 60' alt. 



disappeared. Briirht irregular aurora (1"6) from E.S.E. to E.N.E., 60° alt., till 1.15. 

 Faint patch CS) in N.N.W,, 15° alt. 

 Faint in-egular arch Co) from E. to S.W.. 80° alt. in S.E. 



„ disappeared, except a faint patch ( "0) in S., 26' alt., till 1.50. 

 Faint streamers ( -6) in N.N.E., 30' alt., till 2.15. 



