The Formation of Vegetable Mould Through the Action of Worms: With Observations on Their HabitsAppleton, 1892 - 326 pagini |
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Pagina 7
... floors and walls by worms - Subsidence of the floors- Thickness of the mould - The old Roman city of Wroxeter - Thickness of the mould - Depth of the foundations of some of the buildings - Conclusion 176-229 CHAPTER V. THE ACTION OF ...
... floors and walls by worms - Subsidence of the floors- Thickness of the mould - The old Roman city of Wroxeter - Thickness of the mould - Depth of the foundations of some of the buildings - Conclusion 176-229 CHAPTER V. THE ACTION OF ...
Pagina 9
... be given in which they had * Bidrag till Skandinaviens Oligochætfauna , ' 1871 . + Die bis jetzt bekannten Arten aus der Familie der Regen wilmer , ' 1845 . burrowed through the floor of a very damp cellar . CHAP . 1 . 9 SITES INHABITED .
... be given in which they had * Bidrag till Skandinaviens Oligochætfauna , ' 1871 . + Die bis jetzt bekannten Arten aus der Familie der Regen wilmer , ' 1845 . burrowed through the floor of a very damp cellar . CHAP . 1 . 9 SITES INHABITED .
Pagina 10
With Observations on Their Habits Charles Darwin. burrowed through the floor of a very damp cellar . I have seen worms in black peat in a boggy field ; but they are extremely rare , or quite absent in the drier , brown , fibrous peat ...
With Observations on Their Habits Charles Darwin. burrowed through the floor of a very damp cellar . I have seen worms in black peat in a boggy field ; but they are extremely rare , or quite absent in the drier , brown , fibrous peat ...
Pagina 20
... floor should be caused . When under these circumstances worms were illuminated by a bull's - eye lantern having slides of dark red and blue glass , which in- tercepted so much light that they could be seen only with some difficulty ...
... floor should be caused . When under these circumstances worms were illuminated by a bull's - eye lantern having slides of dark red and blue glass , which in- tercepted so much light that they could be seen only with some difficulty ...
Pagina 95
... floor , as if he had just buried them in the ground : a beaver will cut up logs of wood and drag them about , though there is no water to dam up ; and so in many other cases . Mr. Romanes who has specially studied the minds of animals ...
... floor , as if he had just buried them in the ground : a beaver will cut up logs of wood and drag them about , though there is no water to dam up ; and so in many other cases . Mr. Romanes who has specially studied the minds of animals ...
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.