The Formation of Vegetable Mould Through the Action of Worms: With Observations on Their HabitsAppleton, 1892 - 326 pagini |
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Pagina 67
... apex than towards the base . This proved to be the case with those of a laburnum ( a hybrid between Cytisus alpinus and laburnum ) for on doubling the terminal over the basal half , they gene- rally fitted exactly ; and when there was ...
... apex than towards the base . This proved to be the case with those of a laburnum ( a hybrid between Cytisus alpinus and laburnum ) for on doubling the terminal over the basal half , they gene- rally fitted exactly ; and when there was ...
Pagina 69
... apex . After they have fallen off , the blade on each side of the midrib often becomes curled up while drying , sometimes along the whole length , sometimes chiefly at the base , sometimes towards the apex . Out of 28 fallen leaves on ...
... apex . After they have fallen off , the blade on each side of the midrib often becomes curled up while drying , sometimes along the whole length , sometimes chiefly at the base , sometimes towards the apex . Out of 28 fallen leaves on ...
Pagina 70
... apex , will dry more quickly than the end embedded in the damp ground ; and the exposed margins of the free end will consequently tend to become more curled inwards than they were when the leaf was first seized by the worm . My son ...
... apex , will dry more quickly than the end embedded in the damp ground ; and the exposed margins of the free end will consequently tend to become more curled inwards than they were when the leaf was first seized by the worm . My son ...
Pagina 71
... apex , the other would be pressed against the ground and would resist the entry of the seized one . This was manifest in the above mentioned two or three excep- tional cases . In order , therefore that worms should do their work well ...
... apex , the other would be pressed against the ground and would resist the entry of the seized one . This was manifest in the above mentioned two or three excep- tional cases . In order , therefore that worms should do their work well ...
Pagina 76
... apex would have been preferred . But the result was that out of 121 leaves with the tips cemented , which were drawn into bur- rows , 108 were drawn in by their bases , and only 13 by their tips . Thinking that the worms might possibly ...
... apex would have been preferred . But the result was that out of 121 leaves with the tips cemented , which were drawn into bur- rows , 108 were drawn in by their bases , and only 13 by their tips . Thinking that the worms might possibly ...
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.