OBSERVATIONS OF LUNAR OBJECTS. " Tt 



No. 1, diverging N.E. and S.E. to spots Nos. 3 and 17, and extending from 

 them in opposite directions to the N. and S. horders.] At 5.30 Mr. Gledhill 

 recorded that spot No. 4 is already indistinct ; there is a dull yellow patch 

 about it. No. 3 at this early stage of illumination Mr. Gledhill found to be 

 single ; he looked in vain for the other two adjacent spots, Nos. 30 and 31. 



1870, Oct. 3. Mr. Gledhill records Nos. 1, 3, 17, and 30 as elevated ob- 

 jects. Mr. Elger found no trace of 3. 



1870, March 11, Mr, Gledhill describes spots Nos, 1 and 3 as bright, cir- 

 cular. 



Interval 36 to 48 hours. 



1870, April 10. Mr. Gledhill records spot No. 1 as a large, sharp, cir- 

 cular crater, with internal shadow on W. side ; also Nos. 3 and 17 as circular 

 craters. Mr. Elger records Nos. 16 and 25 as frequently glimpsed. 



1870, July 7. Mr. Whitley observed Nos. 1, 3, and 17 as craterlets, 4 a 

 white spot, and glimpsed No. 11 very faint. On the same evening Mr. Neison 

 recorded the floor as very dark, the spots indistinct, not visible continuously ; 

 and Mr. Elger could just trace the " sector." 



1870, Jan. 11, 7.20. Mr. Gledhill describes spot No. 1 as a large round 

 crater, larger than Linne, quite bright and circular, a very fine easy object. 

 At 7.30 the same evening, he says " Linne also is now seen as a crater, with 

 some shadow within on the west." At 7.45 Mr. Gledhill writes : " Now the 

 N.E. inner slopes of craters Nos. 1 and 3 glow in the bright sun, whUe the 

 S.W. inner slopes are in shadow. It is the N.E. inner slope which so often, 

 in bad definition, comes out as a bright disk or semidisk." 



1869, August 16. Mr. Pratt thus >vrites : — "Of these difficult objects 

 [the spots], seven were seen many times during the hour; No. 1 often well 

 defined as a crater, Nos. 3 and 4 as well-defined craters as No. 1, but accom- 

 panied with a nebulous light, perhaps caused by the companion spots to each, 

 which, however, were never clearly defined owing to the minuteness of the 

 objects and the short periods of definition clear enough. They both had a 

 similar appearance." 



1870, September 4. Mr, Neison records No. 4 as just observable, and 14 

 very faint. 



Interval 48 to 60 hours. 



1870, May 10. Mr. Gledhill records spots Nos. 1, 3, and 17 as elevated 

 craters with little internal shadows. Mr. Elger records No. 5 as seen only 

 by glimpses much fainter than 17; 16 and 14 easy. 



1871, March 1. Mr. Gledhill records spot No. 1 as a crater brightest on 

 the inner E. wall. 



1870, August 6. Mr. Elger noticed the west portion of the floor of an 

 even light colour. It is on this portion that the spots Nos. 13, 19, and 22, 

 which have decreased of late in visibility, are situated. On the 24th of 

 March, 1870, Mr. Gledhill observed the reverse, viz. the west part of the 

 floor exhibited the darkest tint. It was, however, less in extent than the 

 light portion given by Mr. Elger, and was seen under the opposite illumina- 

 tion. See intervals 108"^ to 96", and 12" to 0" *. 



1870, October 4. Mr. Gledhill records No. 1 as an elevated object. Mr. 

 Elger found No. 14 more easy than 5 and 17 ; it was not seen by Gledhill. 

 Nos. 3, 30, and 17 were seen as bright disks by GledhUl. 



* These reversed tints are quite in accordance with the surface of the floor dipping on 

 each side from the line of " fault" crossing Plato from N.W. to S.E. 



