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 25
Pagina 50
... collected on such a site , the calciferous glands contained as many free calciferous cells , and fully as many and large concretions , as did the glands of worms which lived where there was little or no lime ; and this indicates that ...
... collected on such a site , the calciferous glands contained as many free calciferous cells , and fully as many and large concretions , as did the glands of worms which lived where there was little or no lime ; and this indicates that ...
Pagina 59
... collected over the mouth of a burrow than can be used , so that a small pile of unused leaves is left like a roof over those which have been partly dragged in . A leaf in being dragged a little way into a cylindrical burrow is ...
... collected over the mouth of a burrow than can be used , so that a small pile of unused leaves is left like a roof over those which have been partly dragged in . A leaf in being dragged a little way into a cylindrical burrow is ...
Pagina 73
... collected many more leaves over the mouths of their burrows ( as in the case formerly mentioned of lime - leaves ) than could enter them . On other occasions , how- ever , they behaved very differently ; for as soon as they touched the ...
... collected many more leaves over the mouths of their burrows ( as in the case formerly mentioned of lime - leaves ) than could enter them . On other occasions , how- ever , they behaved very differently ; for as soon as they touched the ...
Pagina 80
... more effectually . Thus , out of 37 petioles inserted by their tips , 5 had been previously drawn in by the base , for this part had been gnawed . Again , I collected a handful of petioles lying loose on the 80 CHAP . II . HABITS OF WORMS .
... more effectually . Thus , out of 37 petioles inserted by their tips , 5 had been previously drawn in by the base , for this part had been gnawed . Again , I collected a handful of petioles lying loose on the 80 CHAP . II . HABITS OF WORMS .
Pagina 81
With Observations on Their Habits Charles Darwin. I collected a handful of petioles lying loose on the ground close to some plugged - up bur- rows , where the surface was thickly strewed with other petioles which apparently had never ...
With Observations on Their Habits Charles Darwin. I collected a handful of petioles lying loose on the ground close to some plugged - up bur- rows , where the surface was thickly strewed with other petioles which apparently had never ...
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.