The Formation of Vegetable Mould Through the Action of Worms: With Observations on Their HabitsAppleton, 1892 - 326 pagini |
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Pagina 7
... whole surface of the land in every moderately humid country , is the subject of the present volume . This mould is generally of a blackish colour and a few inches in thickness . In different districts it differs but little in appearance ...
... whole surface of the land in every moderately humid country , is the subject of the present volume . This mould is generally of a blackish colour and a few inches in thickness . In different districts it differs but little in appearance ...
Pagina 7
... whole no doubt is of the highest antiquity , yet in regard to its permanence , we shall here- after see reason to believe that its component particles are in most cases removed at not a very slow rate , and are replaced by others due to ...
... whole no doubt is of the highest antiquity , yet in regard to its permanence , we shall here- after see reason to believe that its component particles are in most cases removed at not a very slow rate , and are replaced by others due to ...
Pagina 7
... whole coun- try has passed many times through , and will again pass many times through , the intestinal canals of worms . Hence the term " animal mould " would be in some respects more appropriate than that commonly used of vegetable ...
... whole coun- try has passed many times through , and will again pass many times through , the intestinal canals of worms . Hence the term " animal mould " would be in some respects more appropriate than that commonly used of vegetable ...
Pagina 7
... whole surface will be found strewed with castings . Dr. King , the superintendent of the Botanic Garden in Calcutta , to whose kindness I am indebted for many observations on earth- worms , informs me that he found , near Nancy in ...
... whole surface will be found strewed with castings . Dr. King , the superintendent of the Botanic Garden in Calcutta , to whose kindness I am indebted for many observations on earth- worms , informs me that he found , near Nancy in ...
Pagina 9
... whole surface , where the soil is poor and the grass short and thin . But they are almost or quite as numerous in some of the London parks , where the grass grows well and the soil appears rich . Even on the same field . worms are much ...
... whole surface , where the soil is poor and the grass short and thin . But they are almost or quite as numerous in some of the London parks , where the grass grows well and the soil appears rich . Even on the same field . worms are much ...
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.