The Formation of vegetable mould, through the action of worms, with observations on their habitsJ. Murray, 1895 - 328 pagini |
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Pagina
... plugging up the mouths of their burrows - Stones piled over the burrows- The advantages thus gained - Intelligence shown by worms in their manner of plugging up their burrows -Various kinds of leaves and other objects thus used ...
... plugging up the mouths of their burrows - Stones piled over the burrows- The advantages thus gained - Intelligence shown by worms in their manner of plugging up their burrows -Various kinds of leaves and other objects thus used ...
Pagina
... plugging up the mouths of their burrows - Stones piled over the burrows— The advantages thus gained - Intelligence shown by worms in their manner of plugging up their burrows -Various kinds of leaves and other objects thus used ...
... plugging up the mouths of their burrows - Stones piled over the burrows— The advantages thus gained - Intelligence shown by worms in their manner of plugging up their burrows -Various kinds of leaves and other objects thus used ...
Pagina 55
... plugging up the mouths of their burrows- Stones piled over the burrows - The advantages thus gained— Intelligence shown by worms in their manner of plugging up their burrows - Various kinds of leaves and other objects thus used ...
... plugging up the mouths of their burrows- Stones piled over the burrows - The advantages thus gained— Intelligence shown by worms in their manner of plugging up their burrows - Various kinds of leaves and other objects thus used ...
Pagina 58
... plugging up the mouths of their burrows ; and this is one of their strongest instincts . Leaves and petioles of many kinds , some flower - pedun- cles , often decayed twigs of trees , bits of paper , feathers , tufts of wool and horse ...
... plugging up the mouths of their burrows ; and this is one of their strongest instincts . Leaves and petioles of many kinds , some flower - pedun- cles , often decayed twigs of trees , bits of paper , feathers , tufts of wool and horse ...
Pagina 60
... plugging them up and for food , but for the sake of lining the upper part or mouth . When worms cannot obtain leaves , petioles , sticks , & c . , with which to plug up the mouths of their burrows , they often protect them by little ...
... plugging them up and for food , but for the sake of lining the upper part or mouth . When worms cannot obtain leaves , petioles , sticks , & c . , with which to plug up the mouths of their burrows , they often protect them by little ...
Alte ediții - Afișează-le pe toate
Darwin on Humus and the Earthworm: The Formation of Vegetable Mould Through ... Charles Darwin Vizualizare fragmente - 1966 |
Termeni și expresii frecvente
9 inches accumulated acetic acid acid action of worms alimentary canal amount angles animals apex apical appears basal base Beaulieu Abbey beneath the surface broken buried burnt marl burrows cent chalk cinders close concrete covered depth diameter disintegration dragged drawn earth feet field flints floor formed fragments gizzards glands grass ground heavy rain Hensen holes hypocausts Illustrations inches beneath inches deep inches in length inches in thickness inches thick intestines Joyce Knole Park lamellæ land large number larvæ layer leaf leaves Leith Hill Place lime Maer Hall manner matter mortar mouths nearly northern room objects observed particles pasture pavement penetrated petioles pharynx pine-leaves 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 undisturbed upper vegetable mould walls washed weather weight whilst worm-castings worms
Pasaje populare
Pagina 322 - OUTINGS AT ODD TIMES. By CHARLES C. ABBOTT, author of " Days out of Doors " and " A Naturalist's Rambles about Home." i6mo. Cloth, gilt top, $1.25. " A charming little volume, literally alone with Nature, for it discusses seasons and the fields, birds, etc., with the loving freedom of a naturalist born. Every page reads like a sylvan poem; and for the lovers of the beautiful in quiet...