 | 1860 - 362 Seiten
...the capping or summit of a slight elevation of the chalk. A section of this pit, which -Mr Prfstwich lately exhibited to the Royal Society,* showed that...white, siliceous sand, interspersed with small rounded chalk-pebbles ; and above the sand is a layer of strong loam, of a red colour, which is now extensively... | |
 | 1860 - 364 Seiten
...slight elevation of the chalk. A section of this pit, which Mr Pro stwich lately exhibited to the Koyal Society,* showed that the gravel presents here a thickness...white, siliceous sand, interspersed with small rounded chalk-pebbles ; and above the sand is a layer of strong loam, of a red colour, which is now extensively... | |
 | 1861 - 534 Seiten
...the quarry to which extent the gravel had been removed by me before 1 found it. The bed of gravel now in question forms the capping or summit of a slight...feet. Above this occurs a thin bed of coarse, white, silicious sand interspersed with small rounded chalk -pebbles; and above the sand is a layer of strong... | |
 | 1861 - 506 Seiten
...the quarry to which extent the gravel had been removed by me before I found it. The bed of gravel now in question forms the capping or summit of a slight...elevation of the chalk. A section of this pit, which Mr. Frestwich lately exhibited to the Royal Society showed that the gravel presents here a thickness of... | |
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It was found lying at the depth of sixteen feet from the upper surface, and about eighteen inches from the face or outer surface of the quarry, to which extent the gravel had been removed by me before I found- it. The bed of gravel in question forms the... 