The Formation of Vegetable Mould Through the Action of Worms: With Observations on Their HabitsAppleton, 1892 - 326 pagini |
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Pagina 14
... - borne long ago knew . In the morning , after there has been heavy rain , the film of mud or of very fine sand over gravel - walks is often plainly marked with their tracks . I have noticed this 14 СПАР . І. HABITS OF WORMS .
... - borne long ago knew . In the morning , after there has been heavy rain , the film of mud or of very fine sand over gravel - walks is often plainly marked with their tracks . I have noticed this 14 СПАР . І. HABITS OF WORMS .
Pagina 18
... sand and small stones , from the to a little more than the 1 inch in diameter , may generally be found in their gizzards and intestines . As it is certain that worms swal- low little stones , in- dependently of those swal- lowed while ...
... sand and small stones , from the to a little more than the 1 inch in diameter , may generally be found in their gizzards and intestines . As it is certain that worms swal- low little stones , in- dependently of those swal- lowed while ...
Pagina 31
... sand , which was slightly pressed down and well watered , so as to be rendered very compact , and these pieces were never discovered . On a third occasion the same kind of sand was neither pressed down nor watered , and the pieces of ...
... sand , which was slightly pressed down and well watered , so as to be rendered very compact , and these pieces were never discovered . On a third occasion the same kind of sand was neither pressed down nor watered , and the pieces of ...
Pagina 52
... lime neutralises the intestinai acids . When worms were kept in pots filled * M. Foster , ' A Text - Book of Physiology , ' 2nd edit . 1878 , p . 243 . with fine ferruginous sand , it was manifest . that 52 CHAP . I. HABITS OF WORMS .
... lime neutralises the intestinai acids . When worms were kept in pots filled * M. Foster , ' A Text - Book of Physiology , ' 2nd edit . 1878 , p . 243 . with fine ferruginous sand , it was manifest . that 52 CHAP . I. HABITS OF WORMS .
Pagina 53
With Observations on Their Habits Charles Darwin. with fine ferruginous sand , it was manifest . that the oxide of iron , with which the grains of silex were coated , had been dissolved and removed from them in the castings . The ...
With Observations on Their Habits Charles Darwin. with fine ferruginous sand , it was manifest . that the oxide of iron , with which the grains of silex were coated , had been dissolved and removed from them in the castings . The ...
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.