The Formation of Vegetable Mould Through the Action of Worms: With Observations on Their HabitsAppleton, 1892 - 326 pagini |
Din interiorul cărții
Rezultatele 1 - 5 din 61
Pagina 7
... inches in thickness . In different districts it differs but little in appearance , although it may rest on various subsoils . The uniform fineness of the particles of which it is com- posed is one of its chief characteristic features ...
... inches in thickness . In different districts it differs but little in appearance , although it may rest on various subsoils . The uniform fineness of the particles of which it is com- posed is one of its chief characteristic features ...
Pagina 11
... thick- ness cf a few inches , worm - castings abounded . These spots seemed to be overstocked with worms , so that they had been compelled to spread to a distance of a few feet from the grassy paths , and here their castings had been ...
... thick- ness cf a few inches , worm - castings abounded . These spots seemed to be overstocked with worms , so that they had been compelled to spread to a distance of a few feet from the grassy paths , and here their castings had been ...
Pagina 18
With Observations on Their Habits Charles Darwin. latter organ is lined with a smooth thick which runs in a straight ... inch in diameter , may generally be found in their gizzards and intestines . As it is certain that worms swal- low ...
With Observations on Their Habits Charles Darwin. latter organ is lined with a smooth thick which runs in a straight ... inch in diameter , may generally be found in their gizzards and intestines . As it is certain that worms swal- low ...
Pagina 78
... inches in length , are rigid and of nearly uniform thickness , except close to the base where they thicken rather abruptly , being here about twice as thick as in any other part . The apex is somewhat pointed , but soon withers and is ...
... inches in length , are rigid and of nearly uniform thickness , except close to the base where they thicken rather abruptly , being here about twice as thick as in any other part . The apex is somewhat pointed , but soon withers and is ...
Pagina 79
... length from 5 to 8 inches ; they are thick and fleshy towards the base , whence they taper gently towards the apex , which is a little enlarged and truncated where the terminal leaflet had been originally attached . Under some ash ...
... length from 5 to 8 inches ; they are thick and fleshy towards the base , whence they taper gently towards the apex , which is a little enlarged and truncated where the terminal leaflet had been originally attached . Under some ash ...
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.