[K12ltsp-list] Kepler's Laws.' He describes himself

[Bosquez]

Ey have a more rugged outline, and their peaks are more precipitous,
some of them rising to a height of 20,000 feet. They are called the
Lunar Alps, Apennines, and Cordilleras, and embrace every variety of
hill, cliff, mound, and ridge of comparatively low elevation. The plains
are large level areas, which are situated on various parts of the lunar
surface; they are of a darker hue than the mountainous regions by which
they are surrounded, and were at one time believed to be seas. They are
analogous to the prairies, steppes, and deserts of the Earth.
_Valleys._--Some of these are of spacious dimensions; others are narrow,
and contract into gorges and chasms. Clefts or rills are long cracks or
fissures of considerable depth, which extend sometimes for hundreds of
miles across the various strata of which the Moon's crust is composed.
The characteristic features of the Moon's surface are the crater
mountains: they are very numerous on certain portions of the lunar disc,
and give the Moon the freckled appearance which it presents in the
telescope, and which Galileo likened to the eyes in the feathers of a
peacock's tail. They are believed to be of volcanic origin, and have
been classified as follows: 'Walled plains, mountain rings, ring plains,
crater plains, craters, craterlets, and crater cones.' Upwards of 13,000
of these mountains have been enumerated, and 1,000 are known to have a
diameter exceeding nin
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