The Formation of Vegetable Mould Through the Action of Worms: With Observations on Their HabitsAppleton, 1892 - 326 pagini |
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Pagina 14
... less than 45 dead worms in one place in a length of sixteen paces . From the facts above 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 ...
... less than 45 dead worms in one place in a length of sixteen paces . From the facts above 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 ...
Pagina 25
... less I can see no reason to doubt the justice of the comparison . Although worms cannot be said to possess the power of vision , their sensitiveness to light enables them to distinguish between day and night ; and they thus escape ...
... less I can see no reason to doubt the justice of the comparison . Although worms cannot be said to possess the power of vision , their sensitiveness to light enables them to distinguish between day and night ; and they thus escape ...
Pagina 27
... on which the pot stood , was accidentally and lightly struck ; but they appeared less sensi- tive to such jars than to the vibrations of the piano ; and their sensitiveness to jars varied much at CHAP . I. 27 THEIR SENSES .
... on which the pot stood , was accidentally and lightly struck ; but they appeared less sensi- tive to such jars than to the vibrations of the piano ; and their sensitiveness to jars varied much at CHAP . I. 27 THEIR SENSES .
Pagina 32
... less gnawed . On two other occasions , how- ever , they seemed to prefer the red . Half- decayed leaves of the red variety and fresh leaves of the green were attacked about equally . When leaves of the cabbage , horse- radish ( a ...
... less gnawed . On two other occasions , how- ever , they seemed to prefer the red . Half- decayed leaves of the red variety and fresh leaves of the green were attacked about equally . When leaves of the cabbage , horse- radish ( a ...
Pagina 39
... less completely their green colour , and their contents finally become brown . The parts thus affected often appeared almost black by reflected light ; but when viewed as a trans- parent 3 CHAP . I. 39 FOOD AND DIGESTION .
... less completely their green colour , and their contents finally become brown . The parts thus affected often appeared almost black by reflected light ; but when viewed as a trans- parent 3 CHAP . I. 39 FOOD AND DIGESTION .
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.