The Formation of vegetable mould, through the action of worms, with observations on their habitsJ. Murray, 1895 - 328 pagini |
Din interiorul cărții
Rezultatele 1 - 5 din 27
Pagina
... bodies of worms - The action of these acids facilitated by the continued movement of the particles of earth -A thick bed of mould checks the disintegration of the underlying soil and rocks - Particles of stone worn or triturated in the ...
... bodies of worms - The action of these acids facilitated by the continued movement of the particles of earth -A thick bed of mould checks the disintegration of the underlying soil and rocks - Particles of stone worn or triturated in the ...
Pagina
... bodies of worms - The action of these acids facilitated by the continued movement of the particles of earth -A thick bed of mould checks the disintegration of the underlying soil and rocks - Particles of stone worn or triturated in the ...
... bodies of worms - The action of these acids facilitated by the continued movement of the particles of earth -A thick bed of mould checks the disintegration of the underlying soil and rocks - Particles of stone worn or triturated in the ...
Pagina 3
... bodies is due , as was first suggested to me by Mr. Wedgwood of Maer Hall in Staffordshire , to the large quantity of fine earth continually brought up to the surface by worms in the form of castings . These castings are sooner or later ...
... bodies is due , as was first suggested to me by Mr. Wedgwood of Maer Hall in Staffordshire , to the large quantity of fine earth continually brought up to the surface by worms in the form of castings . These castings are sooner or later ...
Pagina 13
... bodies , and with the help of the short , slightly reflexed bristles , with which their bodies are armed , they hold so fast that they can seldom be dragged out of the ground without being torn into pieces . During the day they remain ...
... bodies , and with the help of the short , slightly reflexed bristles , with which their bodies are armed , they hold so fast that they can seldom be dragged out of the ground without being torn into pieces . During the day they remain ...
Pagina 16
... bodies from coming into close contact with the cold damp earth . It is said that they completely close their burrows during the winter . Structure . - A few remarks must be made on this subject . The body of a large worm consists of ...
... bodies from coming into close contact with the cold damp earth . It is said that they completely close their burrows during the winter . Structure . - A few remarks must be made on this subject . The body of a large worm consists of ...
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...