1851 Great Exhibition: Official Catalogue: Class X.: Charlotte Readhouse
677. READHOUSE, CHARLOTTE, Newark-on-Trent — Designer and Producer.
Lunar globe: a model of the moon, giving a general idea of the relative position of the mountains, valleys, and plains of our satellite, in relief.
[The distinctive structural peculiarities of the lunar regions are,—
1st. A vast distribution of annular mountains, thrown up like ramparts round plains or valleys, having rugged ridges, and a conical hill rising out from the centre of many of them. Sir John Herschel, who computes the height of the highest of these mountains, at 1.75 English miles (though Scroeter gives 5 miles as his calculation), testifies that they offer, in its highest perfection, the true volcanic character, and, speaking from his own observation, says that, " in some of the principal ones, decisive marks of volcanic stratification, arising from successive deposits of ejected matter, may be clearly traced with powerful telescopes."
2. Extensive plains, having the appearance of alluvial soil—relieved, however, with a number of crater-formed mountains (Copernicus, Kepler, Aristarchus, etc.), and small rocky eminences, with here and there circular cavities of various dimensions. These "large regions" (to use Herschel's term) are scattered over with fragments of rock, ashes, etc. They are given in neutral tint on the model.
3. Hundreds of cup-shaped valleys dimpling the general surface in every direction, and giving the idea of a contraction or settling down of the exterior on the receding interior, according to a theory proposed by Mr. Nasmyth at the last meeting of the "British Association."
The model illustrates the more reflective localities of the moon in dull gold bronze, displaying a number of bright rays, which seem to spread over a large section of the southern regions of the hemisphere, and diverging from a common centre (Tycho).]