 | Science - 1822 - 448 pages
...about ten inches thick, of black earthy manganese. The variety (3,) is scattered in detached lumps, from the size of a walnut to that of a man's head, all over this mountain, though not in great quantity in any one place. On reference to the map annexed,... | |
 | Josiah Brewer - Istanbul (Turkey) - 1830 - 408 pages
...some travellers have called chalk cliffs. Among the ruins of Troas are blocks of breccia with pebbles from the size of a walnut to that of a man's head. The city walls are constructed from a singular shell-conglomerate of which you have a specimen. Its... | |
 | Royal Society of Edinburgh - Science - 1878 - 830 pages
...forming regular c£nons. The whole length of the river bottom is covered by wellrolled pieces of pumice from the size of a walnut to that of a man's head. In the dry season (winter) there is but little water flowing, but in the summer, or rainy season, the... | |
 | Hugh Miller - Geologists - 1858 - 502 pages
...centres, to which the chalcedony seems to have been drawn, as if by molecular attraction. We find a mass, varying from the size of a walnut to that of a man's head, occupying some larger vesicle or crevice of the amygdaloid, and all the smaller vesicles around it,... | |
 | Hugh Miller - 1865 - 542 pages
...centres, to which the chaleedony seems to have been drawn, as if by molecular attraction. We find a mass, varying from the size of a walnut to that of a man's head, occupying some larger vesicle or crevice of the amygdaloid, and all the smaller vesicles around it,... | |
 | Encyclopedias and dictionaries - 1862 - 900 pages
...Etite, a variety of argillaceous oxyde of iron, occurring in masses, varying from the size of awalnut to that of a man's head. Their form is spherical, oval, or nearly renifonn.or sometimes like a parallelepiped with rounded edges and angles. They have a rough surface,... | |
 | Hugh Miller - Geology - 1869 - 528 pages
...centres, to which the chalcedony seems to have been drawn, as if by molecular attraction. We find a mass, varying from the size of a walnut to that of a man's head, occupying some larger vesicle or crevice of the amygdaloid, and all the smaller vesicles around it,... | |
 | Louisiana State University. Board of Supervisors - 1871 - 526 pages
...laminated sand rests on pebbly sand, and that on a gypseous clay. The gypsum is in rounded masses, from the size of a walnut to that of a man's head. I understood that some larger masses had been found, but had been burned for plaster and used as a... | |
 | Hugh Miller - Geology - 1872 - 504 pages
...centres, to which the chalcedony seems to have been drawn, as if by molecular attraction. "We find a mass, varying from the size of a walnut to that of a man's head, occupying some larger vesicle or crevice of the amygdaloid, and all the smaller vesicles around it,... | |
 | Ernst Otto Röhrig - English language - 1881 - 396 pages
...(UJÎiner.) aetites, eagle-stone (a variety of argillaceous oxide of iron , occurring in rounded or ovoidal masses, varying from the size of a walnut to that of a man's head, having usually a concentric structure, often hollow within, with a loose kernel at center). Älätbaffin... | |
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The heliotrope has formed among it in centres, to which the chalcedony seems to have been drawn, as if by molecular attraction. We find a mass, varying from the size of a walnut to that of a man's head, occupying some larger vesicle or crevice of the... 
