The Formation of Vegetable Mould Through the Action of Worms: With Observations on Their HabitsAppleton, 1892 - 326 pagini |
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Pagina 7
... objects - Their power suction — The instinct of plugging up the mouths of their burrows - Stones piled over the burrows— The advantages thus gained - Intelligence shown by worms in their manner of plugging up their burrows -Various ...
... objects - Their power suction — The instinct of plugging up the mouths of their burrows - Stones piled over the burrows— The advantages thus gained - Intelligence shown by worms in their manner of plugging up their burrows -Various ...
Pagina 7
... surface by worms in the form of castings . These castings are sooner or later * Transactions Geolog . Soc . ' vol . v . p . 505. Read Novera- ber 1 , 1837 . spread out and cover up any object left on the INTRODUCTION . 3.
... surface by worms in the form of castings . These castings are sooner or later * Transactions Geolog . Soc . ' vol . v . p . 505. Read Novera- ber 1 , 1837 . spread out and cover up any object left on the INTRODUCTION . 3.
Pagina 7
With Observations on Their Habits Charles Darwin. spread out and cover up any object left on the surface . I was thus led to conclude that all the vegetable mould over the whole coun- try has passed many times through , and will again ...
With Observations on Their Habits Charles Darwin. spread out and cover up any object left on the surface . I was thus led to conclude that all the vegetable mould over the whole coun- try has passed many times through , and will again ...
Pagina 7
... objects left on the surface were buried by worms . But some of my observa- tions have been rendered almost superfluous by an admirable paper by Von Hensen , * Gardeners ' Chronicle , ' April 17 , 1869 , p . 418 . already alluded to ...
... objects left on the surface were buried by worms . But some of my observa- tions have been rendered almost superfluous by an admirable paper by Von Hensen , * Gardeners ' Chronicle , ' April 17 , 1869 , p . 418 . already alluded to ...
Pagina 21
... object . They appeared distressed by the light ; but I doubt whether this was really the case , for on two occasions after withdrawing slowly , they remained for a long time with their anterior extremities protruding a little from the ...
... object . They appeared distressed by the light ; but I doubt whether this was really the case , for on two occasions after withdrawing slowly , they remained for a long time with their anterior extremities protruding a little from 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.