The Formation of Vegetable Mould Through the Action of Worms: With Observations on Their HabitsAppleton, 1892 - 326 pagini |
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Pagina 7
... ejected - The collapse of old burrows - Distribution of worms— Tower - like castings in Bengal - Gigantic castings on the Nilgiri Mountains - Castings ejected in all countries Page 55-128 CHAPTER III . THE AMOUNT OF FINE EARTH BROUGHT ...
... ejected - The collapse of old burrows - Distribution of worms— Tower - like castings in Bengal - Gigantic castings on the Nilgiri Mountains - Castings ejected in all countries Page 55-128 CHAPTER III . THE AMOUNT OF FINE EARTH BROUGHT ...
Pagina 7
With Observations on Their Habits Charles Darwin. weight of earth ejected from a burrow , and from all the burrows within a given space - The thickness of the layer of mould which the castings on a given space would form within a given ...
With Observations on Their Habits Charles Darwin. weight of earth ejected from a burrow , and from all the burrows within a given space - The thickness of the layer of mould which the castings on a given space would form within a given ...
Pagina 7
... ejected castings flowing down inclined grass - covered surfaces - The amount of earth which annually flows downwards - The effect of tropical rain on worm castings - The finest particles of earth washed completely away from castings ...
... ejected castings flowing down inclined grass - covered surfaces - The amount of earth which annually flows downwards - The effect of tropical rain on worm castings - The finest particles of earth washed completely away from castings ...
Pagina 16
... ejected earth or rubbish over the burrows be suddenly removed , the end of the worm's body may very often be seen rapidly retreating . This habit of lying near the surface leads to their destruction to an immense extent . Every morning ...
... ejected earth or rubbish over the burrows be suddenly removed , the end of the worm's body may very often be seen rapidly retreating . This habit of lying near the surface leads to their destruction to an immense extent . Every morning ...
Pagina 35
... eject their castings , so as to construct towers ; also by the manner in which the burrows of the common earth - worm are smoothly lined with fine earth and often with little stones , and the mouths of their burrows with leaves . One of ...
... eject their castings , so as to construct towers ; also by the manner in which the burrows of the common earth - worm are smoothly lined with fine earth and often with little stones , and the mouths of their burrows with leaves . One 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.