OBSERVATIONS OF LUNAR OBJECTS. 69 



former and near the S. border. It runs parallel with the noi-thern streak, 

 is about lialf its length, and has its western extremity over a point a httle 

 E. of ]SI"o. 3. It is narrow, and extremely faint and difficult. A minute or 

 two later it was seen better, also a still fainter and narrower line to the 

 north of it, which is parallel with it and the northern streak. The most 

 southern streak produced to the E. would graze the southern edge of II E-As. 



4" 50"". Now the shadows from the W. wall take shape. The south sha- 

 dow, which extends up to the S. border, goes directly into the gap at the S. 

 edge of II &'\ The next pointed shadow to the N. of this goes direct to 

 the middle of II E'/'2 ; it is extremely pointed at its E. end for more than 

 half its length, and is suddenly wider at the W. end. [This appears to indi- 

 cate that the peak which throws the shadow is very needle-like.] I cannot 

 be quite sure that this shadow for the next lO" or 15™ really extended up 

 to the E. border. It became so faint and narrow and line-like that it could 

 not be well seen near the border. Then, again, the floor for some distance 

 (say a distance equal to the width of II &-) lay in rather dark shadow. 

 The floor between the shadows was not bright up to the E. border of Plato ; 

 all along the foot of the E. slope a dark shadow lay, and this interfered with 

 an exact determination of extremities of shorter shadows from the W. wall. 

 The next shadow to the north was a broad paraUel-sided belt, which pro- 

 ceeded to the E. border as such. Its upper or S. edge extended to the N. 

 end of II E'A2^ and its lower or N. edge cut the border of Plato just below, or 

 to the north of II E'/'2. A line through No. 3 to the gap in the S.E. border 

 cuts the W. angles of the two southern bright spaces between the shadows. 



5^. No. 3 lies on the lower edge of the lowest bright space or upper edge 

 of the lowest shadow. The shadow still clings to or is in contact with No. 3, 

 and either extends to the E. of it, or No. 3 throws a shadow to the E. The 

 floor along the E. border is stiU dusky ; it is brightest at that part in Une 

 with No. 3, 



5" 5™. A very fine narrow shadow is now seen to stand off from the sha- 

 dow below and in contact with No. 3 ; it is this which touches No. 3. 



5" IS". The upper shadow is now clearly pointed, and falls short of the 

 border. [This is probably the shadow of the peak between B. & M.'s y and 

 ^.] I still see a minute elevation just to the N.E. of No. 3. It is now just 

 on the tip of the lowest pointed shadow, and about halfway from 3 to the 

 N.E. border. [This spot is No. 32 ; it was discovered in streak B by Mr 

 Elger on December 15, 1869.— W. E. P.] 



5" 45™. Floor at the foot of the E. border is still dark, except at the ex- 

 treme N. The long broad shadow is now retiring from the E. border, and is 

 seen faintly bifui'cated ; the lowest or northern fork is the longer, but this 

 broad shadow stUl seems to have its N. and S. edges parallel. 



6". Now the dark shadow on the S. border breaks up, and a fine pointed 

 shadow separates from its northern side, which if produced goes quite into 

 the gap at the southern edge of II &K The bright W. angle above this 

 shadow goes back towards the W. until under the great gap in the S. border. 

 The great central shadow is now easily seen bifurcated ; the lower peak is 

 the longest, and reaches nearly up to the east border. The tip of the shorter 

 shadow to the N. reaches just to No. 3 ; the next to the N. is rather lono-er 



0" 20™. The object to the N.E. of 3 (32) is easy, elevated, and bright. Now 

 4 is seen, also a large elevated object (7) about halfway from it to the N. 

 extremity of II E'A^, and on this hne. 



6" 30™. The great S. band of shadow goes straight into the gap at the S. 

 end of II E'/'2. The E. portion of the floor for some distance from the foot 



