The Formation of Vegetable Mould Through the Action of Worms: With Observations on Their HabitsAppleton, 1892 - 326 pagini |
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Pagina 7
... layer of mould which the castings on a given space would form within a given time if uniformly spread out - The slow rate at which mould can increase to a great thickness - Conclusion CHAPTER IV . Page 129-175 THE PART WHICH WORMS HAVE ...
... layer of mould which the castings on a given space would form within a given time if uniformly spread out - The slow rate at which mould can increase to a great thickness - Conclusion CHAPTER IV . Page 129-175 THE PART WHICH WORMS HAVE ...
Pagina 7
... layer of vegetable mould , which covers the whole surface of the land in every moderately humid country , is the subject of the present volume . This mould is generally of a blackish colour and a few inches in thickness . In different ...
... layer of vegetable mould , which covers the whole surface of the land in every moderately humid country , is the subject of the present volume . This mould is generally of a blackish colour and a few inches in thickness . In different ...
Pagina 7
... layer of vegetable mould as a whole no doubt is of the highest antiquity , yet in regard to its permanence , we shall here- after see reason to believe that its component particles are in most cases removed at not a very slow rate , and ...
... layer of vegetable mould as a whole no doubt is of the highest antiquity , yet in regard to its permanence , we shall here- after see reason to believe that its component particles are in most cases removed at not a very slow rate , and ...
Pagina 7
... layer . This apparent sinking of superficial bodies is due , as was first suggested to me by Mr. Wedgwood of Maer Hall in Staffordshire , to the large quantity of fine earth continually brought up to the surface by worms in the form of ...
... layer . This apparent sinking of superficial bodies is due , as was first suggested to me by Mr. Wedgwood of Maer Hall in Staffordshire , to the large quantity of fine earth continually brought up to the surface by worms in the form of ...
Pagina 7
... layer , composed of dead leaves and innumerable worm - castings . He there heard the Professor of " Aménagement des Forêts " lecturing to his pupils , and pointing out this case as a " beautiful example of the natural cultiva- " tion of ...
... layer , composed of dead leaves and innumerable worm - castings . He there heard the Professor of " Aménagement des Forêts " lecturing to his pupils , and pointing out this case as a " beautiful example of the natural cultiva- " tion of ...
Alte ediții - Afișează-le pe toate
The Formation of Vegetable Mould: Through the Action of Worms, with ... Charles Darwin Vizualizare completă - 1896 |
The Formation of Vegetable Mould, Through the Action of Worms, with ... Charles Darwin Vizualizare completă - 1898 |
The formation of vegetable mould, through the action of worms, with Charles Darwin Vizualizare completă - 1897 |
Termeni și expresii frecvente
accumulated acetic acid acid action of worms alimentary canal amount angle animals apex appear basal base Beaulieu Abbey beneath the surface blown bodies brought buried burrows calciferous carbonic acid cells cent chalk Cloth concrete covered depth disintegration doubt dragged drawn earth feet field flints floor formed fragments gizzards glands grass ground heavy rain Hensen holes Illustrations inches beneath inches deep inches in thickness inches thick intestines JOSEPH LE CONTE Knole Park lamellæ land large number larvæ layer leaf leaves ledges Leith Hill Place lime Maer Hall manner matter mortar mouths nearly objects observed particles pasture pavement penetrated Perrier petioles pharynx places ploughed plugging pots probably Roman villa rubbish sand seen seized side Silchester slope soil species square yard Stonehenge stones subsided swallowed tesselated tiles tips trench triangles triturated turf upper vegetable mould walls washed weather weight whilst worm-castings worms
Pasaje populare
Pagina 1 - II. Physics and Politics ; or, Thoughts on the Application of the Principles of "Natural Selection " and " Inheritance
Pagina 2 - XVIII. THE NATURE OF LIGHT. With a General Account of Physical Optics.
Pagina 2 - XXIII. Studies in Spectrum Analysis. By J. Norman Lockyer, FRS With six photographic Illustrations of Spectra, and numerous engravings on Wood.