268 REPORT— 1872. 



1869. h h 



Nov. 14, 60 to 72. Seen by Gledliill east of spot No. IG ; 

 „ 19, 1G8 „ 15G. Continued in streak "o," with c reaching nearly to 8, con- 

 A'ox to border. Contrast this with later observations, in 

 which it was seen concave to the border; a change is 

 manifest by the contemporaneity of c and " o." (See re- 

 marks imder Sept. 25, p. 295.) 



Bric/htness of JV. W. area. 



Seen with difficiilty ; N. W. part of floor brightest. 



Difficult to separate from the bright N. audN.VV. part of 

 floor. 



Continued in " o," the two forming the brightest and best- 

 defined streak on the floor. The brightness of the N.W. 

 area appears to have subsided. 



Continued in " o ;" fairly bright. 



Very bright, extending from Webb's elbow, which is con- 

 tinued in c. This phase was more fully developed on 

 April 14, 1870 : Mr. Elger's observation. 



Recorded as bright. 



Recorded as bright, and extending from "Webb's elbow. 



The continuation "o" appears to have been lost after the 

 15th. Recorded as the brightest. 



Recorded as the brightest. 



Brighter than any other streak. 



Well seen ; its brightness blends with bright N.W. floor. 

 Continued in "o." 

 Continued in " o." 



Continued in " o," and extending from Webb's elbow ; quite 

 separated from border. Bright. 

 Feb. 9, 24 „ 36. Seen as a sharp narrow bright streak from the tip of the 



most northern shadow to the N.E. border, nearly parallel 

 with a line through spots 1 and 4. 



From Mr. Gledhill's measures combined the streak 

 forms an acute angle with the longest diameter through 

 spots Nos. 1 and 4 (see ante, p. 207). 

 Well seen by Mr. Gledhill. 

 Veiy broad and bright. 



The continuation " o " was not observed in February or 

 March ; in January it was seen from 60 to 144 hours after 

 sunrise, also in Sept., Oct., Nov., and December. 

 Recorded with sector by Mr. Gledhill as the hrightest on the 



floor and easy. 

 Very bright, with the sector the brightest on the floor. 

 Difluse and extending up to the N. border; easily but not 

 well seen. 



April 10, 36 „ 48. Continued in "o;" ill-defined, especially at the N.W. Not 



seen by Mr. Gledhill as a distinct sharp streak. See 

 Elger's drawing of this date (p. 275.). 

 „ 11, 72 „ 84. " " very hazy and ill-defined. 



„ 14, 132 „ 144. Extending from Webb's elbow, quite separated from the 

 border, the streak c projected towards the south. See 

 diagram by Mr. Elger (p. "285), in which the N.W. part of 

 the floor presents a ditlerent aspect to that which it did 

 on the 10th, four days earlier, " o " being entirely absent, 

 and c with e exhibiting a concavity towards the border. 

 ,, 15, 168 „ jner. Verj' bright, projecting portion of c brighter than on the 

 14th, and nearly joining the western arm of the trident : 

 the continuation " o " not seen. 



