The Formation of Vegetable Mould Through the Action of Worms: With Observations on Their HabitsAppleton, 1892 - 326 pagini |
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Pagina 7
... live long under water -- Nocturnal - Wander about at night - Often lie close to the mouths of their burrows , and are thus destroyed in large numbers by birds - Structure -Do not possess eyes , but can distinguish between light and ...
... live long under water -- Nocturnal - Wander about at night - Often lie close to the mouths of their burrows , and are thus destroyed in large numbers by birds - Structure -Do not possess eyes , but can distinguish between light and ...
Pagina 7
... up by the 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 .
... up by the 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 8
... live long under water- Nocturnal - Wander about at night - Often lie close to the mouths of their burrows , and are thus destroyed in large numbers by birds - Structure - Do not possess eyes , but can distinguish between light and ...
... live long under water- Nocturnal - Wander about at night - Often lie close to the mouths of their burrows , and are thus destroyed in large numbers by birds - Structure - Do not possess eyes , but can distinguish between light and ...
Pagina 16
... live for a long time under water . I believe that they lie near the surface for the sake of warmth , es- pecially in the morning ; and we shall here- after find that they often coat the mouths of their burrows with leaves , apparently ...
... live for a long time under water . I believe that they lie near the surface for the sake of warmth , es- pecially in the morning ; and we shall here- after find that they often coat the mouths of their burrows with leaves , apparently ...
Pagina 37
... live chiefly on half - decayed leaves ; and these would be useless to them unless they could digest the cellulose forming the cell- walls ; for it is well known that all other nutri- tious substances are almost completely with- drawn ...
... live chiefly on half - decayed leaves ; and these would be useless to them unless they could digest the cellulose forming the cell- walls ; for it is well known that all other nutri- tious substances are almost completely with- drawn ...
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.