118 

 1903. 



were visible to an altitude of 40 and converged to a point slightly S. of the zenith. Lower edge 

 of arc very even and well defined. 



5h. to 6h. p.m. Arc still in same place, but most of the streamers rising from its northern 

 end, and some of them remarkably sharp and brilliant at 5h. 30m. p.m. A second arc 

 appeared below it without streamers. A loop appeared at N. end of upper arc. The streamers 

 faded one after the other from S. to N. When the most northern one had disappeared, new ones 

 formed at the S. end. While the display was at its brightest, it cast well-defined shadows 

 of objects on the floe. Occasionally, in the brightest patches, a pale-green colour was 

 discernible.] 



lOh. 30m. p.m. Bright auroral arc, extending from E.N.E. to W.S.W., right through zenith, 

 broad in zenith. 



June 21. 6h. a.m. Auroral arc very bright, at intervals of thirty seconds to a minute. Highest point 30. 

 Moving from S. to N.N.W. Temperature, - 28 F. Calm. b. 



[4h. Om. to 4h. 30m. p.m. Went out into Sound and witnessed fine auroral display low down 

 on N. (magnetic) horizon. 



At first a long streak of diffused aurora extended from near Mount Terror (or W.N.W. 

 magnetic) to about N.W. magnetic, about 2 in altitude. Soon after an arc was formed from 

 N.W. to N. (magnetic), altitude of apex 3, then the glow near Mount Terror faded, leaving a 

 milky appearance of the sky, and another arc formed, the apex of which was almost at right 

 angles to the magnetic meridian, altitude 3. A few isolated beams and patches of light on each 

 side. A very fine curtain of draped aurora was formed a little to the right of the arc at about 

 4h. 30m. p.m., that part of the curtain nearest the horizon being bright and dense, and contained 

 just a trace of pink. Vertical shafts at extreme right of curtain, but other parts diffused light. 

 Lateral movement rapid, but practically no vertical movement. Display lasted nearly all day, 

 but very low down on horizon, and quite invisible from the ship.] 



Midnight. Streamers from N. to S., brightest to N. 



June 22. 2h. p.m. Bright aurora to S.E. true, streamers to 20, and bright glow below hills. A curtain 

 rose to 40 altitude. 



Ih. 30m. p.m. Bright glow in N.W. magnetic, just showing above gap. Evidently a bright 

 display in same quarter as yesterday, and low down. Inspected the glow with direct-vision 

 spectroscope, and the characteristic yellow aurora line near D was quite distinctly visible for 

 more than 15 minutes, but could see no other lines. Directed prismatic camera towards glow, 

 with Cadet spectrum plate exposed. Magnets appear disturbed. Perhaps the low arc and 

 display in magnetic N., which is repeated for many successive days, bears some relation to the 

 large deflexions in H magnet so frequent and similar on many of the magnetograms between 

 Ih. p.m. and 6h. p.m., M.T. 



4h. to 6h. p.m. Faint display to N. and E. true. 



Midnight. Arc from E.S.E. to S.W. by W., altitude 70, the widest part not more than 2. 

 Very bright in the centre, lower edge sharp at W. side (altitude 30 W. side). Completely faded 

 away at 10 past 12. Faint streamers from Observation Hill to Crater Hill. Temperature, 

 - 38 F. ; min. - 44 F. Calm. 



June 23. 6h. a.m. Faint aurora from E.S.E. to E. 



4h. p.m. [In Sound, streamers and arc low down on horizon from N.E. to E.S.E. true.] 



lOh. p.m. Aurora patch in S. and E. true. 



Midnight to Oh. 20m. a.m. Bright aurora patch in zenith, with long streamer extending 

 from it northwards (true). Movement of this streamer N. was very rapid. Light diffused. 

 Two faint curtains a little to S. of Observation Hill and altitude between 10 and 20. 



