The Formation of Vegetable Mould Through the Action of Worms: With Observations on Their HabitsAppleton, 1892 - 326 pagini |
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Pagina 7
... kinds of leaves and other objects thus used - Triangles of paper - Summary of reasons for believing that worms exhibit some intelligence— Means by which they excavate their burrows , by pushing away the earth and swallowing it - Earth ...
... kinds of leaves and other objects thus used - Triangles of paper - Summary of reasons for believing that worms exhibit some intelligence— Means by which they excavate their burrows , by pushing away the earth and swallowing it - Earth ...
Pagina 7
... kind have been made , as far as I know , on animals so low in the scale of organization and so poorly provided with sense - organs , as are earth - worms . In the year 1837 , a short paper was read by me before the Geological Society of ...
... kind have been made , as far as I know , on animals so low in the scale of organization and so poorly provided with sense - organs , as are earth - worms . In the year 1837 , a short paper was read by me before the Geological Society of ...
Pagina 7
... kind as those published , and to attack the problem on another side ; namely , to weigh all the cast- ings thrown up within a given time in a measured space , instead of ascertaining the rate at which objects left on the surface were ...
... kind as those published , and to attack the problem on another side ; namely , to weigh all the cast- ings thrown up within a given time in a measured space , instead of ascertaining the rate at which objects left on the surface were ...
Pagina 9
... kinds which bring up earth to the surface in the form of cast- ings . Hoffmeister says that the species in Germany are not well known , but gives the same number as Eisen , together with some strongly marked varieties . † Earth - worms ...
... kinds which bring up earth to the surface in the form of cast- ings . Hoffmeister says that the species in Germany are not well known , but gives the same number as Eisen , together with some strongly marked varieties . † Earth - worms ...
Pagina 18
... kind . Grains of 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 ...
... kind . Grains of 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 ...
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.