The Formation of Vegetable Mould Through the Action of Worms: With Observations on Their HabitsAppleton, 1892 - 326 pagini |
Din interiorul cărții
Rezultatele 1 - 5 din 28
Pagina 57
... considerable space ; the epidermis alone on the opposite side being left quite clean . The veins were never touched , and leaves were thus some- times partly converted into skeletons . worms have no teeth and as their mouths consist of ...
... considerable space ; the epidermis alone on the opposite side being left quite clean . The veins were never touched , and leaves were thus some- times partly converted into skeletons . worms have no teeth and as their mouths consist of ...
Pagina 66
... the worms as a convenient handle , has little or no in- fluence in determining the manner in which lime leaves are dragged into the burrows . The considerable proportion , viz . , 17 per cent 656 CHAP . II . HABITS OF WORMS .
... the worms as a convenient handle , has little or no in- fluence in determining the manner in which lime leaves are dragged into the burrows . The considerable proportion , viz . , 17 per cent 656 CHAP . II . HABITS OF WORMS .
Pagina 67
With Observations on Their Habits Charles Darwin. The considerable proportion , viz . , 17 per cent . , drawn in more or less transversely depends no doubt on the flexibility of these half - decayed leaves . The fact of so many having ...
With Observations on Their Habits Charles Darwin. The considerable proportion , viz . , 17 per cent . , drawn in more or less transversely depends no doubt on the flexibility of these half - decayed leaves . The fact of so many having ...
Pagina 70
... considerable degree of correctness how best to draw the withered leaves of this foreign plant into their burrows ; notwithstanding that they had to depart from their usual habit of avoiding the foot - stalk . On the gravel - walks in my ...
... considerable degree of correctness how best to draw the withered leaves of this foreign plant into their burrows ; notwithstanding that they had to depart from their usual habit of avoiding the foot - stalk . On the gravel - walks in my ...
Pagina 71
... considerable length in the two first and short in the last named species , and are united to a common base ; and it is by this part that they are almost invariably drawn into the burrows . I have seen only two or at most three ...
... considerable length in the two first and short in the last named species , and are united to a common base ; and it is by this part that they are almost invariably drawn into the burrows . I have seen only two or at most three ...
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.