The Formation of vegetable mould, through the action of worms, with observations on their habitsJ. Murray, 1895 - 328 pagini |
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Pagina 101
... concrete and decayed mortar between the tiles , with which the now ruined aisle of Beaulieu Abbey had formerly been paved , was washed , so that the coarser matter alone was left . This consisted of grains of quartz , micaceous slate ...
... concrete and decayed mortar between the tiles , with which the now ruined aisle of Beaulieu Abbey had formerly been paved , was washed , so that the coarser matter alone was left . This consisted of grains of quartz , micaceous slate ...
Pagina 180
... mould ; D , broken mortar ; E , black mould ; F F , undisturbed sub - soil ; G , tessera ; H. concrete 1 , nature unknown ; W , buried wall . GE of the atrium varied in thickness from 11 to 16. 180 CHAP . IV . BURIAL OF THE REMAINS.
... mould ; D , broken mortar ; E , black mould ; F F , undisturbed sub - soil ; G , tessera ; H. concrete 1 , nature unknown ; W , buried wall . GE of the atrium varied in thickness from 11 to 16. 180 CHAP . IV . BURIAL OF THE REMAINS.
Pagina 184
... concrete , had been undermined by worms , and had thus been caused to sink , being afterwards covered up by their cast- ings . I therefore at first concluded that all the fine mould above the ruins had been washed down from the upper ...
... concrete , had been undermined by worms , and had thus been caused to sink , being afterwards covered up by their cast- ings . I therefore at first concluded that all the fine mould above the ruins had been washed down from the upper ...
Pagina 186
... concrete were seen to be solid , and had never been penetrated by worms , and here the rain- water lodged . Sept. 5th . - Tracks of worms , made during the previous night , could be seen on the sur- face of the floor , and five or six ...
... concrete were seen to be solid , and had never been penetrated by worms , and here the rain- water lodged . Sept. 5th . - Tracks of worms , made during the previous night , could be seen on the sur- face of the floor , and five or six ...
Pagina 188
... concrete floor , and found the worms still at work . Knowing what great muscular power worms possess , and seeing how soft the concrete was in many parts , I was not surprised at its having been penetrated by their burrows ; but it is a ...
... concrete floor , and found the worms still at work . Knowing what great muscular power worms possess , and seeing how soft the concrete was in many parts , I was not surprised at its having been penetrated by their burrows ; but it is a ...
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...