The Formation of Vegetable Mould Through the Action of Worms: With Observations on Their HabitsAppleton, 1892 - 326 pagini |
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Pagina 7
... appear an insignificant one , but we shall see that it possesses some interest ; and the maxim " de minimis lex non curat , " does not apply to science . Even Elie de Beaumont , who generally undervalues small agencies and their ...
... appear an insignificant one , but we shall see that it possesses some interest ; and the maxim " de minimis lex non curat , " does not apply to science . Even Elie de Beaumont , who generally undervalues small agencies and their ...
Pagina 9
... appears rich . Even on the same field . worms are much more frequent in some places than in others , without any visible difference in the nature of the soil . They abound in paved court - yards close to houses ; and an instance will be ...
... appears rich . Even on the same field . worms are much more frequent in some places than in others , without any visible difference in the nature of the soil . They abound in paved court - yards close to houses ; and an instance will be ...
Pagina 11
... appears to be in some degree favourable to them , for they often abound in old gravel walks , and in foot - paths across fields . Beneath large trees few castings can be found during certain seasons of the year , and this is apparently ...
... appears to be in some degree favourable to them , for they often abound in old gravel walks , and in foot - paths across fields . Beneath large trees few castings can be found during certain seasons of the year , and this is apparently ...
Pagina 22
... appear . From the foregoing facts it is evident that light affects worms by its intensity and by its duration . It is only the anterior extremity of the body , where the cerebral ganglia lie , which is affected by light , as Hoffmeister ...
... appear . From the foregoing facts it is evident that light affects worms by its intensity and by its duration . It is only the anterior extremity of the body , where the cerebral ganglia lie , which is affected by light , as Hoffmeister ...
Pagina 23
... appears from what Hoffmeister says that a light will occasionally cause paired individuals to separate . When a worm is suddenly illuminated and dashes like a rabbit into its burrow - to use the expression employed by a friend — we are ...
... appears from what Hoffmeister says that a light will occasionally cause paired individuals to separate . When a worm is suddenly illuminated and dashes like a rabbit into its burrow - to use the expression employed by a friend — we are ...
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 - 1897 |
The Formation of Vegetable Mould, Through the Action of Worms, with ... Charles Darwin Vizualizare completă - 1890 |
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.