The Formation of Vegetable Mould Through the Action of Worms: With Observations on Their HabitsAppleton, 1892 - 326 pagini |
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Pagina 7
... castings of worms -The burial of a paved path - The slow subsidence of great stones left on the surface - The number of worms which live within a given space - The weight of earth ejected from a burrow , and from CONTENTS .
... castings of worms -The burial of a paved path - The slow subsidence of great stones left on the surface - The number of worms which live within a given space - The weight of earth ejected from a burrow , and from CONTENTS .
Pagina 7
... 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 PLAYED IN THE BURIAL OF ANCIENT ...
... 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 PLAYED IN THE BURIAL OF ANCIENT ...
Pagina 7
... given time in a measured space , instead of ascertaining the rate at which objects left on the surface were buried by worms . But some of my observa- tions have been rendered almost superfluous by an admirable paper by Von Hensen ...
... given time in a measured space , instead of ascertaining the rate at which objects left on the surface were buried by worms . But some of my observa- tions have been rendered almost superfluous by an admirable paper by Von Hensen ...
Pagina 9
... given in which they had * Bidrag till Skandinaviens Oligochætfauna , ' 1871 . + Die bis jetzt bekannten Arten aus der Familie der Regen wilmer , ' 1845 . burrowed through the floor of a very damp cellar . CHAP . 1 . 9 SITES INHABITED .
... given in which they had * Bidrag till Skandinaviens Oligochætfauna , ' 1871 . + Die bis jetzt bekannten Arten aus der Familie der Regen wilmer , ' 1845 . burrowed through the floor of a very damp cellar . CHAP . 1 . 9 SITES INHABITED .
Pagina 14
... 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 sick , and that their deaths were . merely hastened by the ...
... 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 sick , and that their deaths were . merely hastened by the ...
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.