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Lectures on Agricultural Chemistry and Geology Volume 1 (Paperback) Loot Price: R459
Discovery Miles 4 590
Lectures on Agricultural Chemistry and Geology Volume 1 (Paperback): James Finlay Weir Johnston

Lectures on Agricultural Chemistry and Geology Volume 1 (Paperback)

James Finlay Weir Johnston

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Loot Price R459 Discovery Miles 4 590

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Purchase of this book includes free trial access to www.million-books.com where you can read more than a million books for free. This is an OCR edition with typos. Excerpt from book: ORGANIC AND INORGANIC MATTEH. 19 which their food is absorbed, changed, and converted into parts of their substance. HI. The origin, nature, and principal differences of soils ?with the circumstances on which their relative fertility depends, or under which it is modified. IV. The nature and differences of manures, and their mode of action, whether directly in supplying food to the plant, or indirectly in hastening and increasing their growth. V. The nature and diversities of the food raised as the result of culture-especially in reference to their several equivalents or powers of supporting animal life. Under this head the feeding of cattle and the variations in the quantity and quality of dairy produce, will form subjects of consideration. These different branches, I believe, comprehend the whole subject of chemical agriculture; in regard to all of them we shall derive either from chemistry or geology much important information. 1. Different kinds and states of Matter. All the forms of matter which present themselves to our view, whether in the solid crust of the globe on which we live, in the air which forms the atmosphere by which we are surrounded, or in the bodies of animals and plants?all are capable of being divided into the two great groups of organic and inorganic matter. The solid rocks and soils, the atmosphere, the waters of the seas and oceans, every thing which neither is nor has been the seat of life, may generally be included under the head of inorganic matter. The bodies of all living animals and plants, and their dead carcases, consist of organic or organized matter. These generally exhibit a kind of structure readily visible by the eye, as in the pores of wood, and in the fibres of hemp, or of the lean of beef, and are thus readily di...


Imprint: Rarebooksclub.com
Country of origin: United States
Release date: May 2012
First published: May 2012
Authors: James Finlay Weir Johnston
Dimensions: 246 x 189 x 6mm (L x W x T)
Format: Paperback - Trade
Pages: 112
ISBN-13: 978-0-217-49955-2
Categories: Books
LSN: 0-217-49955-4
Barcode: 9780217499552

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