The Formation of Vegetable Mould Through the Action of Worms: With Observations on Their HabitsAppleton, 1892 - 326 pagini |
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Pagina 14
... sometimes be seen lying on the ground . Mr. Galton informs me that on one such occasion ( March , 1881 ) , the dead worms averaged one for every two and a half paces in length on a walk in Hyde Park , four paces in width . He counted no ...
... sometimes be seen lying on the ground . Mr. Galton informs me that on one such occasion ( March , 1881 ) , the dead worms averaged one for every two and a half paces in length on a walk in Hyde Park , four paces in width . He counted no ...
Pagina 15
... sometimes be traced either to or from the mouths of the burrows in the gravel - walks , for distances between 2 or 3 up to 15 yards . I have never seen two tracks leading to the same burrow ; nor is it likely , from what we shall ...
... sometimes be traced either to or from the mouths of the burrows in the gravel - walks , for distances between 2 or 3 up to 15 yards . I have never seen two tracks leading to the same burrow ; nor is it likely , from what we shall ...
Pagina 28
... sometimes perceived the eddies in the air caused by quickly removing the glass plates . When a worm first comes out of its burrow , it generally moves the much ex- tended anterior extremity of its body from side to side in all ...
... sometimes perceived the eddies in the air caused by quickly removing the glass plates . When a worm first comes out of its burrow , it generally moves the much ex- tended anterior extremity of its body from side to side in all ...
Pagina 34
... sometimes lie in contact . According to Hoffmeister they pass the winter either singly or rolled up with others into a ball at the bottom of their burrows . Although worms are so remark- ably deficient in the several sense - organs ...
... sometimes lie in contact . According to Hoffmeister they pass the winter either singly or rolled up with others into a ball at the bottom of their burrows . Although worms are so remark- ably deficient in the several sense - organs ...
Pagina 42
... Sometimes the starch was dissolved out of only one of the two guard - cells . The nucleus in one case had disappeared , together with the starch - granules . The mere burying of lime - leaves in damp earth for nine days . did not cause ...
... Sometimes the starch was dissolved out of only one of the two guard - cells . The nucleus in one case had disappeared , together with the starch - granules . The mere burying of lime - leaves in damp earth for nine days . did not cause ...
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.