 | Charles Darwin - 1896 - 688 páginas
...very remarkable, from abounding with, so as sometimes to be almost composed of, irregular concretions, from the size of an egg to that of a man's head, of very hard, compact, heavy gypsum, in the form of anhydrite. This gypsum contains some foreign particles... | |
 | Charles Darwin - 1896 - 690 páginas
...very remarkable, from abounding with, so as sometimes to be almost composed of, irregular concretions, from the size of an egg to that of a man's head, of very hard, compact, heavy gypsum, in the form of anhydrite. This gypsum contains some foreign particles... | |
 | Alfred John Jukes-Browne - 1911 - 548 páginas
...pebbly sandstone. The quantity of pebbles seems to be greatest in Staffordshire, where a mass of them from the size of an egg to that of a man's head is banked up against the Permian and Carboniferous rocks. The beds extend over a very large area with... | |
 | Alfred John Jukes-Browne - 1911 - 550 páginas
...pebbly sandstone. The quantity of pebbles seems to be greatest in Staffordshire, where a mass of them from the size of an egg to that of a man's head is banked up against the Permian and Carboniferous rocks. The beds extend over a very large area with... | |
 | 528 páginas
...formation, in flat horizontal beds, alternating with other earths in some places, in others in kidney-form masses, from the size of an egg to that of a man's...bestowed, it appears to be the same formation, may at some future period and by future observations, be found to contain rocks similar to those of the secondary... | |
 | 900 páginas
...formation, in flat horizontal beds alternating with other earths in some places; in others in kidney form masses from the size of an egg to that of a man's...the flint found • frequently in chalk formations. PRIMITIVE FORMATION. The south east limit of the great primitive formation is covered by the north... | |
 | 1904 - 874 páginas
...When the material was torn up it could be observed that at least 50 per cent of the clay was in lumps from the size of an egg to that of a man's head, just as digged from the clay bank and dumped upon the street. The trouble resulted from too little... | |
 | United States. Army. Corps of Engineers - 1885 - 926 páginas
...sorts of material that has come from the river bed, silt, balls of clay, sand, gravel, and bowlders from the size of an egg to that of a man's head. The material is discharged in low conical heaps. The lightest is carried off to to a distance; the... | |
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Quantities of ochre, from bright yellow to dark brown, are found in abundance in this formation, in flat horizontal beds, alternating with other earths in some places, in others in... 
