five in the morning
There was an abyss to fathom , perhaps some mysterious phenomenon to surprise ; but the projectile 's course could not be altered . They must rigidly submit . They could not guide a balloon , still less a projectile , when once enclosed within its walls . Toward five in the morning the northern limits of the `` Sea of Rains '' was at length passed . The mounts of Condamine and Fontenelle remained -- one on the right , the other on the left . That part of the disc beginning with 60 @ was becoming quite mountainous . The glasses brought them to within two miles , less than that separating the summit of Mont Blanc from the level of the sea .