The Formation of Vegetable Mould Through the Action of Worms: With Observations on Their HabitsAppleton, 1892 - 326 pagini |
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Pagina 9
... 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 well known , but gives the same number ...
... 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 well known , but gives the same number ...
Pagina 11
... 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 - trees in Knole Park , where the ground beneath was bare of all ...
... 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 - trees in Knole Park , where the ground beneath was bare of all ...
Pagina 12
... places rare ; and this may perhaps be due to the close proximity of the sub- jacent rocks , into which worms cannot burrow during the winter so as to escape being frozen . Dr. McIntosh , however , found worm - castings at a height of ...
... places rare ; and this may perhaps be due to the close proximity of the sub- jacent rocks , into which worms cannot burrow during the winter so as to escape being frozen . Dr. McIntosh , however , found worm - castings at a height of ...
Pagina 14
... place in a length of sixteen paces . From the facts above given , it is not probable that these worms could have been drowned , and if they had been drowned they would have perished in their burrows . I believe that they were already ...
... place in a length of sixteen paces . From the facts above given , it is not probable that these worms could have been drowned , and if they had been drowned they would have perished in their burrows . I believe that they were already ...
Pagina 28
... places where worms abounded , but not one emerged . When , however , the ground is dug with a fork and is violently disturbed beneath a worm , it will often crawl quickly out of its burrow .. The whole body of a worm is sensitive to ...
... places where worms abounded , but not one emerged . When , however , the ground is dug with a fork and is violently disturbed beneath a worm , it will often crawl quickly out of its burrow .. The whole body of a worm is sensitive to ...
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.