United States or Thailand ? Vote for the TOP Country of the Week !
All about the room lay books that were not of my culling, from the oak cases, whose every door stood ajar, novels innumerable, "The Arabian Nights," Vaughan's "Silex Scintillans," with a scarlet leaf laid in against "Peace," and "Tennyson" turned on its face at "Fatima," a heavy volume of French moral philosophy, a Methodist hymn-book, Sir Thomas Browne's "Hydriotaphia," and a gilded red-bound history of "Five Little Pigs."
As a general rule, quartz, in a compact or amorphous state, forms a vitreous mass, serving as the base in which feldspar and mica have crystallised; for although these minerals are much more fusible than silex, they have often imprinted their shapes upon the quartz. This fact, apparently so paradoxical, has given rise to much ingenious speculation.
If the silex be derived from the earth, by what vessels is it conveyed to the surface of the plants? and, in addition, if earth be its source, how is it that earth-seeking, and hollow plants, with their epidermis of silex, should arise in soils that are not silicious? being equally predominant, whether the soil be calcareous, argillaceous, or loamy.
Naught shall it avail to thee that thy musical weaving of words hath been graven seven times over, on tablets of stone and agate and ivory, of gold and white silex and porphyry, and the unbreakable rose-adamant, none of these shall suffice to keep thy name in remembrance, for what cannot be broken shall be melted with flame, and what cannot be erased shall be buried miles deep in the bosom of earth, whence it never again shall be lifted into the light of day!
The porphyritic lavas are affected by the action of the sulphuric acid: the alumine, magnesia, soda, and metallic oxides gradually disappear; and often nothing remains but the silex, which unites in mammillary plates, like opal. It is not easy to form an idea of the origin of these incrustations.
The shrewd close fisted Auvergnat! A girl without a fortune! Cayrol Silex as he was called in the commercial world on account of his hardness. This living money-bag had a heart then! It was necessary to believe it since both money-bag and heart had been placed at Mademoiselle de Cernay's feet. This strange girl was certainly destined to millions.
The longest stump stood seven feet out of the ground: the roots, if they are still preserved, are buried and concealed. No one layer of the mudstone appeared much darker than the others, as if it had formerly existed as soil, nor could this be expected, for the same agents which replaced with silex and lime the wood of the trees, would naturally have removed all vegetable matter from the soil.
As I have mentioned, the soundings from the great Atlantic plain are almost entirely made up of Globigerinae, with the granules which have been mentioned and some few other calcareous shells; but a small percentage of the chalky mud perhaps at most some five per cent of it is of a different nature, and consists of shells and skeletons composed of silex, or pure flint.
These clays, which are eaten not only in Java, but also in Sumatra, New Caledonia, Siberia, Guiana, Terra del Fuego, etc., are essentially composed of silex, alumina, and water in variable proportions, and are colored with various metallic oxides. They are in amorphous masses, are unctuous to the touch, stick to the tongue, and form a fine, smooth paste with water.
In some, the traces of fossils may have been effaced by water and acids, at many successive periods; indeed the removal of the calcareous matter of fossil shells is proved by the fact of such organic remains being often replaced by silex or other minerals, and sometimes by the space once occupied by the fossil being left empty, or only marked by a faint impression.
Word Of The Day