382 The Lunar Apennines. 



point among them reaches 8000f. The N. part of the Apen- 

 nines is by far less connected with loftier and more insulated 

 peaks : we find here a crater, Arahis, of great depth (Schr. 

 thinks 3500f. or more) for its diameter of 7 miles ; its 8° of 

 brightness make it conspicuous even in the full moon; a 

 summit close to it on the N. rises 10,400f. above the highland 

 30 miles to the W. ; and another further to the N.W., visible 

 from the plain towards the sunrise, mounts above that level 

 to 14,300f. A short distance N. of Aratus, a high bright 

 ridge in a meridian direction forms for some length the shore 

 of the M. Imbrium. It was named Hadley by Schr., who 

 gave it 13,400f. above the plain beneath; B. and M., 15,200f. 

 — this latter about the same as our Monte Rosa, but with a 

 far finer uprising from the neighbouring level. A summit 

 further S.E. was measured by Schr. at 12,600f. The extreme 

 N. termination of the Apennines (Hadley /?, B. and M.) lies 

 somewhat further out ; — an insulated headland of 8500f., com- 

 manding a grand prospect over boundless plains through a 

 great part of the horizon, broken in the N. by the extreme 

 peaks of the Caucasus, and further E. by the great wall of 

 Aristillus, and contrasted with the huge masses of Hadley on 

 the opposite side. Rounding this promontory, and keeping 

 along the edge of the M. Seven., we come to another consi- 

 derable mountain (Hadley V) worthy of notice, as the nearest 

 vantage-ground commanding' a view of the mysterious Linne, 

 of which so much has lately been said, and overlooking per- 

 haps at the present moment, though from a ' considerable 

 distance, some of those wonderful processes by which the God 

 of nature modifies the results of his own creation. 



This N. section of the Apennines contains more craters 

 than the other parts ; they are all small, bright, and very 

 regular and sharp. One lying between Hadley V and Aratus, 

 and marked 84 by Lohrm., is so conspicuous, that its omission 

 by Schr. might lead to the idea of recent formation, had not 

 the experience of the last few years fully proved the insecure 

 nature of all such inferences. They are, however, of use so far 

 as they tend to a closer examination of suspected districts. 



S.E. from Aratus lies a larger crater, Conon, the principal 

 explosion-centre of the region; 10 miles in diameter, and, 

 according to Schr., nearly 3500f. deep; B. and M. think more. 

 A central elevation was seen by all these observers, as well as 

 by myself with an inferior telescope ; it was, however, missed 

 by Lohrm., who, on the contrary, stands alone in mentioning 

 a pass through the S. part of the ring, containing, a little way 

 out, a minute crater. B. and M. differ also from him in 

 asserting the ready visibility of the crater in the full moon — 

 trifles of detail, which may possibly be some day found more 



