After the sand appeared some compact white clay, resembling the chalk of Great Britain, which extended down to a depth of four feet.
At every two feet which the hole gained in depth they successively withdrew the blocks.
But I can assure my readers that Walden has a reasonably tight bottom at a not unreasonable, though at an unusual, depth. I fathomed it easily with a cod-line and a stone weighing about a pound and a half, and could tell accurately when the stone left the bottom, by having to pull so much harder before the water got underneath to help me.
A factory-owner, hearing what depth I had found, thought that it could not be true, for, judging from his acquaintance with dams, sand would not lie at so steep an angle.
Seated on the poop, Ned Land and I were chatting of one thing and another as we looked at this mysterious sea, whose great depths
had up to this time been inaccessible to the eye of man.
Now, it is known that in the shallow sea on the Arctic coast of America the bottom freezes,  and does not thaw in spring so soon as the surface of the land, moreover at greater depths
, where the bottom of the sea does not freeze the mud a few feet beneath the top layer might remain even in summer below 32 degs., as in the case on the land with the soil at the depth
of a few feet.
A mile away, a grove-plumed promontory juts far into the lake and glasses its palace in the blue depths
; in midstream a boat is cutting the shining surface and leaving a long track behind, like a ray of light; the mountains beyond are veiled in a dreamy purple haze; far in the opposite direction a tumbled mass of domes and verdant slopes and valleys bars the lake, and here indeed does distance lend enchantment to the view--for on this broad canvas, sun and clouds and the richest of atmospheres have blended a thousand tints together, and over its surface the filmy lights and shadows drift, hour after hour, and glorify it with a beauty that seems reflected out of Heaven itself.
"These great depths
," continued the lieutenant, "are not favorable for laying telegraphic cables.
He thought the bell sounded from the depths
of these still lakes; but then he remarked again that the tone proceeded not from there, but farther off, from out the depths
of the forest.
Conjectures as to Napoleon's awareness of the danger of extending his line, and (on the Russian side) as to luring the enemy into the depths
of Russia, are evidently of that kind, and only by much straining can historians attribute such conceptions to Napoleon and his marshals, or such plans to the Russian commanders.
Well, did you ever try to IMAGINE you were in the depths
He reached the brink of the well, stepped outward into space, lunged forward, and shot downward into the inky depths