 | Justus Freiherr von Liebig, Lyon Playfair Baron Playfair - Agricultural chemistry - 1843 - 446 pages
...proof of the nature of the salts contained in them. In the solid and liquid excrements of man and of animals, WE RESTORE TO OUR FIELDS THE ASHES OF THE...these animals. These ashes consist of certain soluble salts and insoluble earths, which a fertile soil must yield, for they are indispensable to the growth... | |
 | Philip Lovell Phillips - 1845 - 126 pages
...oft-quoted authorities; and first, hear Liebig: — " In the solid and liquid excrements of man, and of animals, we restore to our fields the ashes of the plants which served to nourish them. These ashes consist of certain soluble salts and insoluble earths which a fertile soil must yield,... | |
 | Natural history - 1860 - 416 pages
...it has sustained." Again, in page 181, he says : " In the solid and liquid excrements of man and of animals, we restore to our fields the ashes of the...these animals. These ashes consist of certain soluble salts and insoluble earths which a fertile soil must yield, for they are indispensable to the growth... | |
 | Manchester Literary and Philosophical Society - Science - 1860 - 404 pages
...it has sustained." Again, in page 181, he says : " In the solid and liquid excrements of man and of animals, we restore to our fields the ashes of the...these animals. These ashes consist of certain soluble salts and insoluble earths which a fertile soil must yield, for they are indispensable to the growth... | |
 | Robert Morris Copeland - Agriculture - 1866 - 1010 pages
...the supply of certain substances, which were original constituents of the same surfaco of the soil, and had been removed from it by means of plants."...excrements of men and animals, we restore to our fields the as/ies of the plants which served to nourish these animals; these ashes consist of certain soluble... | |
 | Massachusetts. State Board of Agriculture - Agriculture - 1878 - 648 pages
...the liquid and solid excrements of man and animals. We are told, that, in the application of these, "we restore to our fields the ashes of the plants which served to nourish these animals ;" that these ashes consist of certain soluble salts and insoluble earths, which a fertile soil must... | |
 | James Prescott Joule - Chemistry - 1884 - 706 pages
...181, he says : — " In the solid and liquid excrements of man and of animals we restore to our field the ashes of the plants which served to nourish these animals. These ashes consist of certain soluble salts and insoluble earths which a fertile soil must yield, for thuy are indispensable to the growth... | |
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Again, in page 181, he says : " In the solid and liquid excrements of man and of animals, we restore to our fields the ashes of the plants which served to nourish these animals. These ashes consist of certain soluble salts and insoluble earths which a... 