The Formation of vegetable mould, through the action of worms, with observations on their habitsJ. Murray, 1895 - 328 pagini |
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Pagina
... soil and rocks - Particles of stone worn or triturated in the gizzards of worms- Swallowed stones serve as millstones - The levigated state of the castings - Fragments of brick in the castings over ancient buildings well rounded ...
... soil and rocks - Particles of stone worn or triturated in the gizzards of worms- Swallowed stones serve as millstones - The levigated state of the castings - Fragments of brick in the castings over ancient buildings well rounded ...
Pagina
... -- Ir the preservation of ancient remains - In the pre- paration of the soil for the growth of plants- Mental powers of worms - Conclusion · 305-313 INDEX 315-326 THE FORMATION OF VEGETABLE MOULD , THROUGH THE ACTION OF CONTENTS . vii.
... -- Ir the preservation of ancient remains - In the pre- paration of the soil for the growth of plants- Mental powers of worms - Conclusion · 305-313 INDEX 315-326 THE FORMATION OF VEGETABLE MOULD , THROUGH THE ACTION OF CONTENTS . vii.
Pagina
... soil and rocks - Particles of stone worn or triturated in the gizzards of worms- Swallowed stones serve as millstones - The levigated state of the castings - Fragments of brick in the castings over ancient buildings well rounded ...
... soil and rocks - Particles of stone worn or triturated in the gizzards of worms- Swallowed stones serve as millstones - The levigated state of the castings - Fragments of brick in the castings over ancient buildings well rounded ...
Pagina 4
... soil is continually worked , though in such loose soil they generally deposit their castings in any open cavities or within their old burrows instead of on the surface . Von Hensen estimates that there are * Histoire des progrès de la ...
... soil is continually worked , though in such loose soil they generally deposit their castings in any open cavities or within their old burrows instead of on the surface . Von Hensen estimates that there are * Histoire des progrès de la ...
Pagina 5
... soil ; for year after year the " thrown - up castings cover the dead leaves ; " the result being a rich humus of great " thickness . " ་ p . 861 . Zeitschrift für wissenschaft . Zoologie , ' B. xxviii . 1877 * In the year 1869 , Mr ...
... soil ; for year after year the " thrown - up castings cover the dead leaves ; " the result being a rich humus of great " thickness . " ་ p . 861 . Zeitschrift für wissenschaft . Zoologie , ' B. xxviii . 1877 * In the year 1869 , Mr ...
Alte ediții - Afișează-le pe toate
Darwin on Humus and the Earthworm: The Formation of Vegetable Mould Through ... Charles Darwin Vizualizare fragmente - 1966 |
Termeni și expresii frecvente
9 inches accumulated acetic acid acid action of worms alimentary canal amount angles animals apex apical appears basal base Beaulieu Abbey beneath the surface broken buried burnt marl burrows cent chalk cinders close concrete covered depth diameter disintegration dragged drawn earth feet field flints floor formed fragments gizzards glands grass ground heavy rain Hensen holes hypocausts Illustrations inches beneath inches deep inches in length inches in thickness inches thick intestines Joyce Knole Park lamellæ land large number larvæ layer leaf leaves Leith Hill Place lime Maer Hall manner matter mortar mouths nearly northern room objects observed particles pasture pavement penetrated petioles pharynx pine-leaves 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 undisturbed upper vegetable mould walls washed weather weight whilst worm-castings worms
Pasaje populare
Pagina 322 - OUTINGS AT ODD TIMES. By CHARLES C. ABBOTT, author of " Days out of Doors " and " A Naturalist's Rambles about Home." i6mo. Cloth, gilt top, $1.25. " A charming little volume, literally alone with Nature, for it discusses seasons and the fields, birds, etc., with the loving freedom of a naturalist born. Every page reads like a sylvan poem; and for the lovers of the beautiful in quiet...