The Formation of Vegetable Mould Through the Action of Worms: With Observations on Their HabitsAppleton, 1892 - 326 pagini |
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Pagina 43
... alimentary canal . I am not aware of any other case of extra - stomachal digestion having been re- corded . The boa - constrictor bathes its prey with saliva , but this is solely for lubricating it . Perhaps the nearest analogy may be ...
... alimentary canal . I am not aware of any other case of extra - stomachal digestion having been re- corded . The boa - constrictor bathes its prey with saliva , but this is solely for lubricating it . Perhaps the nearest analogy may be ...
Pagina 44
With Observations on Their Habits Charles Darwin. earth - worm debouch into the alimentary canal in advance of the gizzard , but pos- teriorly to it in Urochtæa and some other genera . * The two posterior pairs are formed by lamella ...
With Observations on Their Habits Charles Darwin. earth - worm debouch into the alimentary canal in advance of the gizzard , but pos- teriorly to it in Urochtæa and some other genera . * The two posterior pairs are formed by lamella ...
Pagina 50
... alimentary canal for some special purpose . On the other hand , the following considera- tions render it highly probable that the carbonate of lime , which is excreted by the glands , aids the digestive process under ordinary ...
... alimentary canal for some special purpose . On the other hand , the following considera- tions render it highly probable that the carbonate of lime , which is excreted by the glands , aids the digestive process under ordinary ...
Pagina 51
... alimentary canal were found to be plainly acid , as shown by litmus paper . This acidity cannot be attributed to the nature of the digestive fluid , for pancreatic fluid is alkaline ; and we have seen that the secretion which is poured ...
... alimentary canal were found to be plainly acid , as shown by litmus paper . This acidity cannot be attributed to the nature of the digestive fluid , for pancreatic fluid is alkaline ; and we have seen that the secretion which is poured ...
Pagina 53
... alimentary canal of worms , serve to neutralise more or less completely the acids . there generated by the half - decayed leaves . We have seen that these cells are instantly dissolved by a small quantity of acetic acid , and as they do ...
... alimentary canal of worms , serve to neutralise more or less completely the acids . there generated by the half - decayed leaves . We have seen that these cells are instantly dissolved by a small quantity of acetic acid , and as they do ...
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.