The matter was ejected to a vast height till great mountains were formed; and still the action went on, until at last the floor of the crater sank to a depth far lower than the level of the external plain." "You may be right," said Ardan by way of reply; "as for me, I'm looking out for another city.

But I'm sorry to say that our Projectile is increasing its distance so fast that, even if one lay at my feet at this moment, I doubt very much if I could see it a bit better than either you or the Captain." _Newton_ was soon passed, and the Projectile followed a course that took it directly over the ring mountain _Moretus_.

A little to the west the travellers could easily distinguish the summits of _Blancanus_, 7,000 feet high, and, towards seven o'clock in the evening, they were approaching the neighborhood of _Clavius_.
This walled-plain, one of the most remarkable on the Moon, lies 55 deg.

S.
by 15 deg.

E.Its height is estimated at 16,000 feet, but it is considered to be about a hundred and fifty miles in diameter.