The Formation of Vegetable Mould Through the Action of Worms: With Observations on Their HabitsAppleton, 1892 - 326 pagini |
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Pagina 7
... point of view Page 230-258 · CHAPTER VI . THE DENUDATION OF THE LAND - continued . Denudation aided by recently ejected castings flowing down inclined grass - covered surfaces - The amount of earth which annually flows downwards - The ...
... point of view Page 230-258 · CHAPTER VI . THE DENUDATION OF THE LAND - continued . Denudation aided by recently ejected castings flowing down inclined grass - covered surfaces - The amount of earth which annually flows downwards - The ...
Pagina 56
... point of resistance for the upper lip . In the case of broad flat objects they acted in a wholly different manner . The pointed anterior extremity of the body , after being brought into contact with an object of this kind , was drawn ...
... point of resistance for the upper lip . In the case of broad flat objects they acted in a wholly different manner . The pointed anterior extremity of the body , after being brought into contact with an object of this kind , was drawn ...
Pagina 72
... points were cut off many leaves for a length of about one inch , and fifty - seven of them thus treated were drawn into the burrows by their bases , and not one by the cut - off ends . The worms in confinement often seized the needles ...
... points were cut off many leaves for a length of about one inch , and fifty - seven of them thus treated were drawn into the burrows by their bases , and not one by the cut - off ends . The worms in confinement often seized the needles ...
Pagina 73
... point very near the base was seized , and the leaf was then quickly dragged or rather jerked into their burrows . It ... points of the needles partly inserted into a burrow , but how placed there was not seen ; and then the worm reared ...
... point very near the base was seized , and the leaf was then quickly dragged or rather jerked into their burrows . It ... points of the needles partly inserted into a burrow , but how placed there was not seen ; and then the worm reared ...
Pagina 77
... points of the needles which determines them ; for , as we have seen , many leaves with the points cut off were drawn in by their bases . We are thus led to conclude , that with pine - leaves there must be something . attractive to worms ...
... points of the needles which determines them ; for , as we have seen , many leaves with the points cut off were drawn in by their bases . We are thus led to conclude , that with pine - leaves there must be something . attractive to worms ...
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.