In Cornwall, Mr. Carne mentions true pebbles of quartz and slate in a tin lode of the Relistran Mine, at the depth of 600 feet below the surface.
The smaller ones varied from a few inches to a foot in diameter, and seldom descended more than 12 feet below the surface.
The upper seam, or main coal, here worked out, was 630 feet below the surface.
It is alleged that in quantity it would be hardly sufficient for a good top-dressing, and that in quality it is not chemically distinguishable from the soil inches or feet below the surface.
The relic-bed was 7 feet below the surface, and amongst its débris were found various implements of stone and horn.
It was found in a peat bog at a depth of 5 to 6 feet below the surface, and is now preserved in the Museum at Greifswald.
The tops of the piles were 6 to 10 feet below the surface.
As we have seen, there is a second ice-cave opening out of the principal one, at a depth of 190 feet below the surface; and with respect to this second cave imagination may run riot.
In Placer county stone platters and dishes have been found in auriferous gravels from 10 to 20 feet below the surface.
In mining coal 1,000 feet below the surface in Belgium, twenty-two complete skeletons and several partial skeletons were found in an ancient river deposit of Cretaceous Age.
Certain of the mining shafts have been sunk more than 5,000 feet below the surface, these being next to the deepest in the world.
It was 2½ feet below the surface, partly under a jutting portion of a large rock whose top was above the ashes.
As a man can not push a wheelbarrow up such an incline, a trench must be cut through to the exterior slope; and as solid rock lies not more than 5 feet below the surface at any point, blasting would be necessary the rest of the way.
The skeletons, which were less than 2 feet below the surface, were probably those of Indian hunters.
In the center of the floor of the middle room, 6 feet below the surface, I came upon a cist or stone shrine.
At 6½ feet below the surface I found a Roman well, which I dug out to a depth of more than 36 feet, but which seems to be sunk down as far as the Plain.
Those, however, in the Trojan stratum, from 23 to 33 feet below the surface, are in general of much better workmanship than those above.
The screen is of masonry and descends 10 feet below the surface; it is adorned with frescoes, which may be inspected only when the sacred ikons are removed for that special purpose.
At 50 feet below the surface, while in motion, there was little movement or vibration to be felt; at 80 feet practically none at all, and the stillness became monotonous.
Like their ancestors, the ancient Gauls, they fear nothing; and they prove it by intoning a hymn for France at 200 feet below the surface of the ocean.
The Roman road has been found 11 feet below the surface, together with Roman coins.
The above list will hopefully provide you with a few useful examples demonstrating the appropriate usage of "feet below the surface" in a variety of sentences. We hope that you will now be able to make sentences using this group of words.
