The Formation of Vegetable Mould Through the Action of Worms: With Observations on Their HabitsAppleton, 1892 - 326 pagini |
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Pagina 7
... LAND . Evidence of the amount of denudation which the land has undergone - Subaerial denudation - The deposi- tion of dust - Vegetable mould , its dark colour and fine texture largely due to the action of worms-- The CONTENTS .
... LAND . Evidence of the amount of denudation which the land has undergone - Subaerial denudation - The deposi- tion of dust - Vegetable mould , its dark colour and fine texture largely due to the action of worms-- The CONTENTS .
Pagina 7
... LAND - continued . Denudation aided by recently ejected castings flowing down inclined grass - covered surfaces ... land - An attempt to estimate the amount thus blown - The degradation of ancient encampments and tumuli— The preservation ...
... LAND - continued . Denudation aided by recently ejected castings flowing down inclined grass - covered surfaces ... land - An attempt to estimate the amount thus blown - The degradation of ancient encampments and tumuli— The preservation ...
Pagina 7
... land - 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 P THE FORMATION OF VEGETABLE MOULD , THROUGH THE ACTION CONTENTS . vii.
... land - 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 P THE FORMATION OF VEGETABLE MOULD , THROUGH THE ACTION CONTENTS . vii.
Pagina 7
... 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 , although it may ...
... 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 , although it may ...
Pagina 110
... land , according to Mr. Lindsay Carnagie , the burrows run down to a depth of from 7 to 8 feet ; in North Germany , according to Hoff- meister , from 6 to 8 feet , but Hensen says , from 3 to 6 feet . This latter observer has seen worms ...
... land , according to Mr. Lindsay Carnagie , the burrows run down to a depth of from 7 to 8 feet ; in North Germany , according to Hoff- meister , from 6 to 8 feet , but Hensen says , from 3 to 6 feet . This latter observer has seen worms ...
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.