What to Observe: Or, The Traveller's RemembrancerJ. Madden & Company, 1841 - 577 pages |
From inside the book
Results 1-5 of 81
Page x
... Sand and Gravel . Gravel Boulders and Erratic blocks Siliceous Millstone Gypsum Rock salt Aluminite Colyrite id . 122 id . id . 124 125 126 127 id . · id . 128 129 id . 132 133 135 136 id . Kaolin Cimolite Plastic - clay Lithomarge ...
... Sand and Gravel . Gravel Boulders and Erratic blocks Siliceous Millstone Gypsum Rock salt Aluminite Colyrite id . 122 id . id . 124 125 126 127 id . · id . 128 129 id . 132 133 135 136 id . Kaolin Cimolite Plastic - clay Lithomarge ...
Page xviii
... sand glass , or a clepsydra 500 To know the hour of the day or night 501 To find one's way without compass id . over a plain id . through a wood 502 in a cavern or intricate subterranean passage 503 To climb trees id . To climb or ...
... sand glass , or a clepsydra 500 To know the hour of the day or night 501 To find one's way without compass id . over a plain id . through a wood 502 in a cavern or intricate subterranean passage 503 To climb trees id . To climb or ...
Page 12
... sand fills up their beds and obliterates them , but the water steals along beneath , and is sometimes found by digging to be at no great depth below the surface . were , to have excavated natural ditches for themselves in 12 PLAINS ...
... sand fills up their beds and obliterates them , but the water steals along beneath , and is sometimes found by digging to be at no great depth below the surface . were , to have excavated natural ditches for themselves in 12 PLAINS ...
Page 14
... sand in valleys , or through the sides of slopes ; does it fall in drops , or gush out with greater or less violence in a stream , or does it form a jet - dˇeau , and , if so , what is the height and thickness of the column of water ...
... sand in valleys , or through the sides of slopes ; does it fall in drops , or gush out with greater or less violence in a stream , or does it form a jet - dˇeau , and , if so , what is the height and thickness of the column of water ...
Page 19
... sand . The alluvial soil is sometimes confined within the two external or deltic branches of the river , but more frequently it extends beyond these . Within the deltic branches there are frequently many other diverging RIVERS . 19.
... sand . The alluvial soil is sometimes confined within the two external or deltic branches of the river , but more frequently it extends beyond these . Within the deltic branches there are frequently many other diverging RIVERS . 19.
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Common terms and phrases
abundance according advantages agricultural animals annual arts ascer ascertain atmosphere attention banks Basalt calcareous causes cavern circumstances civilized clay climate coal colour commerce construction cultivated degree deposits depth direction distance earth effect employed exist extent felspar fish foreign formation fossils Gneiss greater Gypsum height hornblende Hygrometer importance industry influence inhabitants instrument interest Kaolin labour lake land latter laws less limestone manner manufacturing mass means measure ment metals Mica mineral mode moral mountains nations nature necessary nerally notice number of persons objects observations obtained operations particular peat places plants principal produce proportion quantity quartz racter rain reason regarding regulations remarkable river roads rocks salt sand sandstone Schistose sheep's sorrel shells situation soil sometimes specific gravity stones strata stratum sufficient surface temperature thermometer thing tion traveller tufas various vegetable veins viviparous winds worthy zodiacal light
Popular passages
Page 91 - Sometimes this and the Cirro-cumulus appear together in the sky, and even alternate with each other in the same cloud; when the different evolutions which ensue...
Page 108 - ... 3. The observations should, if possible, all be made by one person ; but as this may often be impracticable, the principal observer should take care to instruct one or more of his family how to do it, and should satisfy himself by many trials that they observe alike. 4. The entries in the register should be made at the time of observation, and the numbers entered should be those actually read off on the respective scales of each instrument, on no account applying to them previous to entry any...
Page 86 - The usual course of periodical winds, or such as remarkably prevail during certain seasons, with the law of their diurnal progress, both as to direction and intensity ; at what hours, and by what degrees they commence, attain their maximum, and subside ; and through what points of the compass they run in so doing.
Page 90 - The Rain cloud. A cloud, or system of clouds from which rain is falling. It is a horizontal sheet, above which the Cirrus spreads, while the Cumulus enters it laterally and from beneath.
Page 463 - A. A common tin pot, 9 inches high by 2 in diameter. B. A sliding tube of tin, moving up and down in the pot : the head of the tube is closed, but has a slit in it, C, to admit of the thermometer passing through a collar of cork, which shuts up the slit where the thermometer is placed. D. Thermometer, with as much of the scale left out as may be desirable.
Page 91 - On the return of the sun, the level surface of this cloud begins to put on the appearance of cumulus, the whole at the same time separating from the ground. The continuity is next destroyed, and the cloud ascends and evaporates, or passes off with the appearance of the nascent cumulus.
Page 539 - ... above the bottom of the pot. Violent ebullition was continued for ten minutes or a quarter of an hour, and the height of the mercury was repeatedly ascertained during that time, and the temperature of the air was noticed. Similar operations were repeated with a second thermometer, for it is never safe to rely upon one instrument.
Page 543 - When the boiling point at the upper station alone is observed, and for the lower the level of the sea, or the register of a distinct barometer is taken, then the barometric reading had better be converted into feet, by the usual method of subtracting its logarithm from 1.47712 (log. of 30 inches) and multiplying by .0006, as the differences in the column of " barometer " vary more rapidly than those in the "feet
Page 108 - All these and the like corrections, being matter of calculation and reasoning from other observations, are to be reserved till the final discussion of the series, and for separate determination and statement. 5. If copies be taken of the registers, they should be carefully compared with the originals by two persons, one reading aloud from the original and the other attending to the copy, and then exchanging parts, a process always advisable wherever great masses of figures are required to be correctly...
Page 168 - Iron, is met with in four different mineral eras, but in different ores. Among primitive rocks, magnetic iron ore and specular iron ore occur chiefly in beds, sometimes of enormous size; the ores of red or brown oxide of iron...