[Openisp-developer] Tion of the eclipse, even under the most favorable circumstance

[Favro <ra...@vi...>]

Enographica_, the travellers could easily recognize the different
portions of the Moon over which they were now moving. An occasional
glance at our reduction of this map, given as a frontispiece, will
enable the gentle reader to follow the travellers on the line in which
they moved and to understand the remarks and observations in which they
occasionally indulged. "Where are we now?" asked Ardan. "Over the
northern shores of the _Mare Nubium_," replied Barbican. "But we are
still too far off to see with any certainty what they are like. What is
the _Mare_ itself? A sea, according to the early astronomers? a plain of
solid sand, according to later authority? or an immense forest,
according to De la Rue of London, so far the Moon's most successful
photographer? This gentleman's authority, Ardan, would have given you
decided support in your famous dispute with the Captain at the meeting
near Tampa, for he says very decidedly that the Moon has an atmosphere,
very low to be sure but very dense. This, however, we must find out for
ourselves; and in the meantime let us affirm nothing until we have good
grounds for positive assertion." _Mare Nubium_, though not very clearly
outlined on the maps, is easily recognized by lying directly east of the
regions about the centre. It would appear as if this vast plain were
sprinkled with immense lava blocks shot forth from the great volcanoes
on the right, _Ptolemaeus_, _Alphonse_, _Alpetragius_ and