The Formation of Vegetable Mould Through the Action of Worms: With Observations on Their HabitsAppleton, 1892 - 326 pagini |
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Pagina 7
... ground so thickly covered with castings as on commons , at a height of several hundred feet above the sea . In woods again , if the loose leaves in autumr . are removed , the whole surface will be found strewed with castings . Dr. King ...
... ground so thickly covered with castings as on commons , at a height of several hundred feet above the sea . In woods again , if the loose leaves in autumr . are removed , the whole surface will be found strewed with castings . Dr. King ...
Pagina 9
... ground , and one inhabits very wet places or even lives under the water . We are here concerned only with the kinds which bring up earth to the surface in the form of cast- ings . Hoffmeister says that the species in Germany are not ...
... ground , and one inhabits very wet places or even lives under the water . We are here concerned only with the kinds which bring up earth to the surface in the form of cast- ings . Hoffmeister says that the species in Germany are not ...
Pagina 11
... ground by the innu- merable roots of the trees ; for such places may be seen covered with castings after the heavy autumnal rains . Although most cop- pices and woods support many worms , yet in a forest of tall and ancient beech ...
... ground by the innu- merable roots of the trees ; for such places may be seen covered with castings after the heavy autumnal rains . Although most cop- pices and woods support many worms , yet in a forest of tall and ancient beech ...
Pagina 12
With Observations on Their Habits Charles Darwin. Park , where the ground beneath was bare of all vegetation , not a single casting could be found over wide spaces , even during the autumn . Nevertheless , castings were abun- dant on ...
With Observations on Their Habits Charles Darwin. Park , where the ground beneath was bare of all vegetation , not a single casting could be found over wide spaces , even during the autumn . Nevertheless , castings were abun- dant on ...
Pagina 13
... ground is dry , they penetrate to a consider . able depth and cease to work , as they do during the winter when the ground is frozen . Worms are nocturnal in their habits , and at night may be seen crawling about in large numbers , but ...
... ground is dry , they penetrate to a consider . able depth and cease to work , as they do during the winter when the ground is frozen . Worms are nocturnal in their habits , and at night may be seen crawling about in large numbers , but ...
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 - 1897 |
The Formation of Vegetable Mould, Through the Action of Worms, with ... Charles Darwin Vizualizare completă - 1890 |
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.