The Formation of Vegetable Mould Through the Action of Worms: With Observations on Their HabitsAppleton, 1892 - 326 pagini |
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Pagina 49
... cent . of lime . Worms therefore would be liable to become charged with this earth , unless there were some special means for its excretion ; and the calciferous glands are well adapted for this purpose . The worms which live in mould ...
... cent . of lime . Worms therefore would be liable to become charged with this earth , unless there were some special means for its excretion ; and the calciferous glands are well adapted for this purpose . The worms which live in mould ...
Pagina 65
... cent . ( always using the nearest whole number ) had been drawn in by the tip , 9 per cent . by the base or footstalk , and 11 per cent . transversely or СНАР . ІІ . € 5 THEIR INTELLIGENCE .
... cent . ( always using the nearest whole number ) had been drawn in by the tip , 9 per cent . by the base or footstalk , and 11 per cent . transversely or СНАР . ІІ . € 5 THEIR INTELLIGENCE .
Pagina 66
... cent . by or near the base ; and 17 per cent . trans- versely or by the middle . These proportions agree very closely , as far as the tip is con- cerned , with those before given . But the per- centage drawn in by the base is smaller ...
... cent . by or near the base ; and 17 per cent . trans- versely or by the middle . These proportions agree very closely , as far as the tip is con- cerned , with those before given . But the per- centage drawn in by the base is smaller ...
Pagina 67
... cent . , drawn in more or less transversely depends no doubt on the flexibility of these half - decayed leaves . The fact of so many having been drawn in by the middle , and of some few having been drawn in by the base , renders it ...
... cent . , drawn in more or less transversely depends no doubt on the flexibility of these half - decayed leaves . The fact of so many having been drawn in by the middle , and of some few having been drawn in by the base , renders it ...
Pagina 68
... cent . had been drawn in by the tip ; 27 per cent . by the base , and 10 per cent . transversely . We here see that a far larger proportion , viz . , 27 per cent . were drawn in by the base than in the case of lime leaves , the blades ...
... cent . had been drawn in by the tip ; 27 per cent . by the base , and 10 per cent . transversely . We here see that a far larger proportion , viz . , 27 per cent . were drawn in by the base than in the case of lime leaves , the blades ...
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.