 | 1839 - 520 páginas
...smaller fragments. Nor is tho agency so triviul as it at first might be thought, the great number ef earth-worms (as every one must be aware who has ever...On the above hypothesis, the great advantage of old pasture-laud, which farmers are always particularly averse from breaking up, is explained ; for the... | |
 | John Claudius Loudon - 1838 - 666 páginas
...fragments. On the above hypothesis, the great advantage of old pasture land, which farmers arc always averse to break up, is explained; for the worms must require...of the soil, as well as the manures added by man. The author observes, that the digestive process of animals is a geological power of greater extent... | |
 | Edmund Ruffin - 1838 - 834 páginas
...worms must require a considerable length )f time to prepare a thick stratum of mould, by horoughly mingling the original constituent parts of the soil, as well as the manures added by man n the peaty field, in fifteen years, about three luches and a half had been well digested. It is probable... | |
 | 1839 - 500 páginas
...thought, the great number of Earth-worms (as every one must be aware who has ever dug in a grass-field) making up for the insignificant quantity of work which...pasture-land, which farmers are always particularly averse from breaking up, is explained ; for the worms must require a considerable length of time to... | |
 | 1839 - 536 páginas
...lunatic is one who has lucid intervals, but this distinction may also at the present day be disregarded. On the above hypothesis, the great advantage of old...pasture-land, which farmers are always particularly averse from breaking up, is explained ; for the worms must require a considerable length of time to... | |
 | Gilbert White - 1843 - 424 páginas
...of old pasture-land, which farmers are always particularly averse from breaking up ; for (he says) the worms 'must require a considerable length of time...of the soil, as well as the manures added by man." Mr. Darwin is convinced " that every particle of earth in old pasture-land has passed through the intestines... | |
 | Charles Knight - 1866 - 584 páginas
...has ever dug in a grass-field) making up for the insignificant quantity of work which each performa On the above hypothesis, the great advantage of old...as the manures added by man. In the peaty field, in 15 years, about 3J inches had been well digested. It is probable however that the process is continued,... | |
 | Charles Knight - 1866 - 582 páginas
...thought, the great number of Earth-Worms (as every one must be aware who has ever dug in a grass-field) making up for the insignificant quantity of work which...prepare a thick stratum of mould, by thoroughly mingling tho original constituent parts of the soil, as well as the manures added by man. In the peaty field,... | |
 | 1838 - 640 páginas
...thought ; the great number of earth-worms (as every one must be aware, who has ever dug in a grass-field) making up for the insignificant quantity of work which...each performs. On the above hypothesis, the great advantRge of old pasture land, which farmers are always particularly averse from breaking up, is explained... | |
 | 1838 - 1340 páginas
...thought; the great number of earth-worms (as every one must be aware, who has ever dug in a grass-field) making up for the insignificant quantity of work which...On the above hypothesis, the great advantage of old pasture land, which farmers are always particularly averse from breaking up, is explained 5 for the... | |
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... which cinders had been spread out only half a year before, Mr. Darwin actually saw the castings of the worms heaped on the smaller fragments. Nor is the agency so trivial as it at first might be thought, the great number of earth-worms (as every one... 
