The Formation of Vegetable Mould Through the Action of Worms: With Observations on Their HabitsAppleton, 1892 - 326 pagini |
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Pagina 11
... distance of a few feet from the grassy paths , and here their castings had been thrown up among the heath ; but beyond this limit , not a single casting could be found . A layer , though a thin one , of fine earth , which probably long ...
... distance of a few feet from the grassy paths , and here their castings had been thrown up among the heath ; but beyond this limit , not a single casting could be found . A layer , though a thin one , of fine earth , which probably long ...
Pagina 15
... 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 presently see of their sense - organs , that a worm could find its way back to its burrow after ...
... 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 presently see of their sense - organs , that a worm could find its way back to its burrow after ...
Pagina 26
... distance which caused a very sensible degree of warmth in my hand . One of them took no notice ; a second with- drew into its burrow , but not quickly ; the third and fourth much more quickly , and the fifth as quickly as possible . The ...
... distance which caused a very sensible degree of warmth in my hand . One of them took no notice ; a second with- drew into its burrow , but not quickly ; the third and fourth much more quickly , and the fifth as quickly as possible . The ...
Pagina 51
... distance of 5 cm . below the gizzard . Even with the higher herbivorous and omnivorous animals , the contents of the large intestine are acid . " This , however , is not caused by any acid " secretion from the mucous membrane ; the ...
... distance of 5 cm . below the gizzard . Even with the higher herbivorous and omnivorous animals , the contents of the large intestine are acid . " This , however , is not caused by any acid " secretion from the mucous membrane ; the ...
Pagina 74
... distance a Scotch- tir leaf , one needle of which was as long and almost as thick as its own body . No species of pine is endemic in this part of England , it is therefore incredible that the proper manner of dragging pine - leaves into ...
... distance a Scotch- tir leaf , one needle of which was as long and almost as thick as its own body . No species of pine is endemic in this part of England , it is therefore incredible that the proper manner of dragging pine - leaves into ...
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.