There was a problem when proofreading this page.
An image should appear at this position in the text. To use the entire page scan as a placeholder, edit this page and replace "{{missing image}}" with "{{raw image|Collier's New Encyclopedia v. 01.djvu/396}}". Otherwise, if you are able to provide the image then please do so. For guidance, see Wikisource:Image guidelines and Help:Adding images. |
© Mt. Wilson Observatory
NORTHERN PART OF THE MOON, AT LAST QUARTER. NIGHT IS ADVANCING FROM THE LEFT. THE DARK OVAL PLAIN, SURROUNDED BY A BRIGHT WALL, IS "PLATO." THE MOUNTAINS ABOVE AND TO THE LEFT OF "PLATO" ARE THE "LUNAR ALPS." THE LONGER RANGE, EXTENDING ACROSS THE UPPER LEFT-HAND PART OF THE VIEW, ARE THE "LUNAR APENNINES"