If we judged the moon in this way, we should say that she is not only not inhabited by living creatures, but that she could not possibly be inhabited. What is it that makes our earth a fit abode for us who live upon it? Her surface is divided into land and water. We live on the land; but without the water we should perish.
Were there no water, there would be no clouds, no rain, no snow, no rivers, brooks, or other streams. Without these, there could be no vegetable life; and without vegetable life, there could be no animal life, even if animals themselves could live without water.
Yet again, the earth's globe is enwrapped in an atmosphere,—the air we breathe. Without this air, neither animals nor vegetables could live. I might go further and show other features of the earth, which we are at present justified in regarding as essential to the mere existence, and still more to the comfort, of creatures living upon the earth.
Now, before the telescope was invented, many astronomers believed that there was water on the moon, and probably air also. But as soon as Galileo examined the moon with his largest telescope (and a very weak telescope it was), he found that whatever the dark parts of the moon may be, they certainly are not seas.
More and more powerful telescopes have since been turned on the moon. It has been shown that there are not only no seas, but no rivers, pools, lakes, or other water surfaces. No clouds are ever seen to gather over any part of the moon's surface. In fact, nothing has ever yet been seen on the moon which suggests in the slightest degree the existence of water on her surface, or even that water could at present possibly exist; and, of course, without water it is safe to infer there could be neither vegetable nor animal existence.
It would seem, then, that apart from the absence of air on the moon, there is such an entire absence of water that no creatures now living on the earth could possibly exist upon the moon. Certainly man could not exist there, nor could animals belonging to any except the lowest orders of animal life.
FOOTNOTE:
[46] By Richard A. Proctor, a noted English astronomer (1837-1888).