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Its ruddy light shone on the underslopes of their faces, and spread out over the floor of the room with the low horizontality of the setting sun, giving to every grain of sand and tumour in the paving a long shadow towards the door.
In Chaldæa, on the other hand, the proximity of the two rivers to each other, and the perfect horizontality of the soil, make the work of irrigation very easy. The agriculturists were not exposed to the danger of a complete failure of crops, a misfortune which overtook the upper regions of Mesopotamia often enough.
This lifted a wooden latch, and the door swung open. The room inside was lighted only by the ruddy glow from the kiln mouth, which shone over the floor with the streaming horizontality of the setting sun, and threw upwards the shadows of all facial irregularities in those assembled around. The stone-flag floor was worn into a path from the doorway to the kiln, and into undulations everywhere.
One moment he was aged six, and the next he was talking about horizontality. "Why? What do you mean?" "I don't know!" George sighed. "But somehow " Then, with fresh vivacity: "I tell you when Auntie Janet comes to wake me up in the morning the cat comes in too, with its tail up in the air you know!" Edwin nodded.
Putzeys' apparatus, therefore, with a much less discharge of water, is capable of producing an effect superior to that of similar apparatus. On account of its simplicity and plain character, there is no need of precision in the installation of this apparatus, and horizontality, even, is not a sine qua non for its perfect operation.
The fresh-water strata may sometimes be seen to retain their horizontality within a very slight distance of the border-rocks, while in some places they are inclined, and in few instances vertical.
The phenomena most difficult to reconcile with it are, first, the abrupt cessation of the roads at certain points in the different glens; secondly, their unequal number in different valleys connecting with each other, there being three, for example, in Glen Roy, and only one in Glen Spean; thirdly, the precise horizontality of level maintained by the same shelf over a space many leagues in length, requiring us to assume, that during a rise of 1156 feet no one portion of the land was raised even a few yards above another; fourthly, the coincidence of level already alluded to of each shelf with a col, or the point forming the head of two glens, from which the rain-waters flow in opposite directions.
In this case the yielding mass, squeezed, but unable to overcome the resistance which it meets with in a vertical direction, may be gradually relieved by lateral folding. In describing the manner in which strata depart from their original horizontality, some technical terms, such as "dip" and "strike," "anticlinal" and "synclinal" line or axis, are used by geologists.
The succession of strata here alluded to would be consistent with the occurrence of gradual downward and upward movements of the land and bed of the sea without any disturbance of the horizontality of the several formations. But the arrangement of rocks composing the earth's crust differs materially from that which would result from a mere series of vertical movements.
Rocks of the lowest series. A calcareous sedimentary deposit, with recent shells, altered by the contact of superincumbent lava, its horizontality and extent. Subsequent volcanic eruptions, associated with calcareous matter in an earthy and fibrous form, and often enclosed within the separate cells of the scoriae. Ancient and obliterated orifices of eruption of small size.
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