OBSERVATIONS OF LUNAR OBJECTS. 269 



1370. " _'' , 



April If), 103 to 153. Bi-iglit aud sharp ; projection c lias disappaared. 

 „ 17, 144 „ 132. Racorded by GledhiU; query "o." 



Ill this April limation "o" was seen from 33 to 84 

 hours, after which c was seen nearly joining e until meri- 

 dian, after which it disappeared. 

 May 0, 21 „ 33. Could not be traced, northern part of floor equally bright 



as seen by Messrs. Elger and Gledhill. Moon's latitude 

 4° 21'-9 N. 

 „ 10, 48 „ GO. Seen by Mr. Gledhill. 



„ 12, 103 „ 120. Ea?t of No. 16 very bright and well defined, as seen by Mr. 

 Elger. It was seen by Mr. Gledhill east of No. 16, " o " 

 being absent on Nov. 14, 1869, interval 60 to 72 hours. 

 On May 12 the projection c, although plainly seen, could 

 not be traced so far to the south as in April, nor was it 

 so sharply defined as in that lunation ; indeed all the 

 west portion of the N.W. area was hazy as on April 11 

 aud 12, and also on June 10. 



This haziness on the N.W. part of the floor while E. 

 of spot No. 16 was well defined is very noteworthy, as 

 indicative of the haziness being duS to local lunar action, 

 and restricts such action to a very small area of the sur- 

 face. 

 „ 13,132 „ 144. Bright and well defined; very bright at the locality of spot 

 No. 19. 

 June 9, 72 „ 84. The streak a (query its continuation " o ") had the same 



nebulous appearance which it exhibited on May 10. The 

 brightness on the N.W. part of the floor appears to have 

 declined since the early part of the May lunation. 

 „ 10, 93 „ 108. The east portion (a) bright and well defined, the west por- 

 tion hazy ; it appeared to partake of the general haziness 

 of the N.W. quarter of the floor. 



These observations are in striking contrast with those 

 of FebruaiT, in which neither the haziness nor the con- 

 tinuation " o " were observed. 

 Seen as a bright object. 

 Condensed brightness in the middle. 

 Condensed central portion. 



Shown as very narrow by Mr. Elger, and quite separated 



from the north border, the west end crossed bv c and i ; 



no«o." 



Seen by Mr. Gledhill ; dark tint of floor recorded by Pratt. 



Recorded by Gledhill as the brightest amongst the faint 



streaks observed. 

 Quite detached from the border, and figured as narrow bv 



Mr. Elger; no " o." 

 Shown as narrow by iMr. Elger, and quite separated from 

 the north border ; the west end crossed by { and c, which 

 together form a curved streak concave towards the west 

 border, the continuation " o " being entirely absent. 



No mention of a; the N.W. part of the floor in the same 

 state as in August 1809. (See figs. 4 & 5, p. 2>2, and lio-s. 

 6 & 7, p. 254.) ° 



„ 8, 144 „ 132. Recorded by Gledhill as sharply defined, bright, narrow, 

 and straight. 

 ■Mar. 2, 72 „ 84. Extending from spots No. 19 to Nos. 20 and 21 ; very di- 

 stinct. 

 „ 3; 9G „ 108. The fourth streak in order of brightness as observed by Mr, 

 Pratt, the sector k and /3 bsiug hricjhter. 



