The Formation of Vegetable Mould Through the Action of Worms: With Observations on Their HabitsAppleton, 1892 - 326 pagini |
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Pagina 135
... trenches dug in this field 28 years after the application of the marl , * This case is given in a postscript to my paper in the ' Transact . Geolog . Soc . ' ( Vol . v . p . 505 ) , and contains a serious error , as in the account ...
... trenches dug in this field 28 years after the application of the marl , * This case is given in a postscript to my paper in the ' Transact . Geolog . Soc . ' ( Vol . v . p . 505 ) , and contains a serious error , as in the account ...
Pagina 139
... trench was dug across . this part of the field ; and a line of white nodules could be traced on both sides of the trench , at a depth of 7 inches from the surface . The mould , therefore , ( excluding the turf ) had on the same ...
... trench was dug across . this part of the field ; and a line of white nodules could be traced on both sides of the trench , at a depth of 7 inches from the surface . The mould , therefore , ( excluding the turf ) had on the same ...
Pagina 141
... trenches were dug to see how thick the vegetable mould was . By chance the first trench was made at a spot where at some former period , * S. W. Johnson , ' How Crops Feed , ' 1870 , p . 139 certainly more than forty years before , a ...
... trenches were dug to see how thick the vegetable mould was . By chance the first trench was made at a spot where at some former period , * S. W. Johnson , ' How Crops Feed , ' 1870 , p . 139 certainly more than forty years before , a ...
Pagina 144
... trench was dug on the above slope , and the blades of grass were cut off close to the roots , so that the thickness of the turf and of the vegetable mould could be measured accur- ately . The turf was rather less than half an inch , and ...
... trench was dug on the above slope , and the blades of grass were cut off close to the roots , so that the thickness of the turf and of the vegetable mould could be measured accur- ately . The turf was rather less than half an inch , and ...
Pagina 178
... trench being dug , a layer of concrete , still partly covered with tesseræ ( small red tiles ) , and surrounded on two sides by broken- down walls , was soon discovered . It is believed that this room formed part of the atrium or ...
... trench being dug , a layer of concrete , still partly covered with tesseræ ( small red tiles ) , and surrounded on two sides by broken- down walls , was soon discovered . It is believed that this room formed part of the atrium or ...
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.