"What!"' I cried, rising in astonishment, "did you say the tide, Uncle?"
"Certainly I did."
"You do not mean to say," I replied, in a tone of respectful doubt, "that the influence of the sun and moon is felt here below."
"And pray why not? Are not all bodies influenced by the law of universal attraction? Why should this vast underground sea be exempt from the general law, the rule of the universe? Besides, there is nothing like that which is proved and demonstrated. Despite the great atmospheric pressure down here, you will notice that this inland sea rises and falls with as much regularity as the Atlantic itself."
As my uncle spoke, we reached the sandy shore, and saw and heard the waves breaking monotonously on the beach. They were evidently rising.
"This is truly the flood," I crie
