An Elementary Treatise on Physical Geography: To which is Added a Brief Description of the Physical Phenomena of the United States

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Cowperthwait & Company, 1869 - 114 стор.
 

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Сторінка 95 - Valley system of earthworks may be said to embrace all that region that lies between the Great Lakes on the north and the Gulf of Mexico on the south, and...
Сторінка 43 - While sailing a little south of the Plata on one very dark night, the sea presented a wonderful and most beautiful spectacle. There was a fresh breeze, and every part of the surface, which during the day is seen as foam, now glowed with a pale light. The vessel drove before her bows two billows of liquid phosphorus, and in her wake she was followed by a milky train.
Сторінка 51 - England, and the standard adopted in this work, fixes the freezing point of water at 32°, and the boiling point at 212°.
Сторінка 91 - ... hatchets, whether for peaceful or warlike purposes. They had recognised the bonds of blood and the bonds of marriage ; they followed their leaders and kings, and the distinction between right and wrong was fixed by laws and customs. They were impressed with the idea of a divine Being, and they invoked it by various names.
Сторінка 9 - ... and more equable climate, gradually died out and disappeared.* In the state of stability to which the surface of the globe appears actually to have attained, the sun must be considered as the agent which most directly influences the temperature of our atmosphere. The length of the day, the number of hours during which the sun is above the horizon, coupled with the height to which he ascends, such is the cause with which the temperature of each particular latitude is primarily connected; and in...
Сторінка 71 - When the inhabitants have convinced themselves, by boring a hole in the tree, that the pith is ripe, the trunk is cut down and divided into several pieces, the pith is extracted, mixed with water and filtered; it is then quite fit for use as sago. One tree commonly yields 300 Ibs., and occasionally 500 to 600 Ibs. There, then, people go into the forests, and cut bread for themselves, just as they cut fire-wood.
Сторінка 58 - ... twas told to us ;" and wo can account in no other way for the fact that the captain, with a fair wind for his port, should steer away from it. The average passage out to California of vessels not having the results of these researches to guide them is upwards of 180 days; but vessels with these charts on board have made it in 107, in 97, in 96, in 91, and even in 90 days; and their masters, after making allowance for the improved model of their ships, ascribe this great success to the information...
Сторінка 18 - They lie. parallel to the shore, but are separated from it by a channel of water of considerable depth and varying greatly in width. The grandest example of coral formation known is the Great Australian barrier reef. Externally it rises, with little inclination, from a fathomless ocean — stretches upwards of 1,000 miles along the northeast...
Сторінка 31 - It was with difficulty we could persuade ourselves that we were not looking down upon some manufacturing city, until, by a tortuous descent, we arrived at the spot where at once the secrets of the inner world opened upon our astonished senses. In the space of...
Сторінка 43 - There was a fresh breeze, and every part of the surface, which during the day is seen as foam, now glowed with a pale light. The vessel drove before her bows two billows of liquid phosphorus, and in her wake she was followed by a milky train. As far as the eye reached, the crest of every wave was bright, and the sky above the horizon, from the reflected glare of these livid flames, was not so utterly obscure as over the vault of the heavens.

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