Lectures On the General Relations Which Science Bears to Practical Agriculture, Delivered Before the New-York State Agricultural Society
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In our eReader you can find the full English version of the book. Read Lectures On the General Relations Which Science Bears to Practical Agriculture, Delivered Before the New-York State Agricultural Society Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book Lectures On the General Relations Which Science Bears to Practical Agriculture, Delivered Before the New-York State Agricultural Society
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Another point : I have spoken thus far of the temperature of the air only. But this is not the only thing of interest to the farmer; the temperature of the soil itself is of equal consequence. This is a study into which philosophers, whose researches are con- fined to the crust of the globe, have entered largely.
If you bore down into the earth to the depth of 60 feet, and let down a thermometer into the bore, you will find that, in summer, the temperature at a certain depth, varies. It rises i...n summer, owing to the fact that the sun affects the temperature ot the earth down to a certain depth, and so does the cold of winter.
The thermometer, indeed, will never remain station- ary, until you reach a certain depth — about 50 feet below the surface — there, the thermometer remains stationary the year through, showing that the sum- mer and winter do affect the temperature of the earth, to the depth of fifty feet. The depth at which the thermometer remains stationary, indicates a cer- 86 THE RELATIONS OF METEOROLOGY ain degree of temperature of climate If at Albany, for instance, it were fixed at fifty feet, it would be fixed at that depth, one hundred years hence, as no doubt it was one hundred years ago.
What to read after Lectures On the General Relations Which Science Bears to Practical Agriculture, Delivered Before the New-York State Agricultural Society?
You can find similar books in the "Read Also" column, or choose other free books by Johnston, Jas. F. W. (James Finlay Weir), 1796-1855 to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
Another point : I have spoken thus far of the temperature of the air only. But this is not the only thing of interest to the farmer; the temperature of the soil itself is of equal consequence. This is a study into which philosophers, whose researches are con- fined to the crust of the globe, have entered largely.
If you bore down into the earth to the depth of 60 feet, and let down a thermometer into the bore, you will find that, in summer, the temperature at a certain depth, varies. It rises i...n summer, owing to the fact that the sun affects the temperature ot the earth down to a certain depth, and so does the cold of winter.
The thermometer, indeed, will never remain station- ary, until you reach a certain depth — about 50 feet below the surface — there, the thermometer remains stationary the year through, showing that the sum- mer and winter do affect the temperature of the earth, to the depth of fifty feet. The depth at which the thermometer remains stationary, indicates a cer- 86 THE RELATIONS OF METEOROLOGY ain degree of temperature of climate If at Albany, for instance, it were fixed at fifty feet, it would be fixed at that depth, one hundred years hence, as no doubt it was one hundred years ago.
What to read after Lectures On the General Relations Which Science Bears to Practical Agriculture, Delivered Before the New-York State Agricultural Society?
You can find similar books in the "Read Also" column, or choose other free books by Johnston, Jas. F. W. (James Finlay Weir), 1796-1855 to read onlineMoreLess
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