The Formation of vegetable mould, through the action of worms, with observations on their habitsJ. Murray, 1895 - 328 pagini |
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Pagina 5
... seen the ground so thickly covered with castings as on commons , at a height of several hundred feet above the sea . In woods again , if the loose leaves in autumn are removed , the whole surface will be found strewed with castings . Dr ...
... seen the ground so thickly covered with castings as on commons , at a height of several hundred feet above the sea . In woods again , if the loose leaves in autumn are removed , the whole surface will be found strewed with castings . Dr ...
Pagina 9
... seen in extraordinary numbers on commons and chalk - downs , so as almost to cover the whole surface , where the soil is poor and the grass short and thin . But they are almost or quite as numerous in some of the London parks , where ...
... seen in extraordinary numbers on commons and chalk - downs , so as almost to cover the whole surface , where the soil is poor and the grass short and thin . But they are almost or quite as numerous in some of the London parks , where ...
Pagina 10
... seen . On a heath in Surrey , which was carefully . examined , there were only a few castings on these paths , where they were much inclined ; * There is even some reason to believe that pressure is actually favourable to the growth of ...
... seen . On a heath in Surrey , which was carefully . examined , there were only a few castings on these paths , where they were much inclined ; * There is even some reason to believe that pressure is actually favourable to the growth of ...
Pagina 11
... seen covered with castings after the heavy autumnal rains . Although most cop- pices and woods support many worms , yet in a forest of tall and ancient beech - trees in Knole Park , where the ground beneath was bare of all СНАР . І. 11 ...
... seen covered with castings after the heavy autumnal rains . Although most cop- pices and woods support many worms , yet in a forest of tall and ancient beech - trees in Knole Park , where the ground beneath was bare of all СНАР . І. 11 ...
Pagina 13
... seen crawling about in large numbers , but usually with their tails still inserted in their burrows . By the expansion of this part of their bodies , and with the help of the short , slightly reflexed bristles , with which their bodies ...
... seen crawling about in large numbers , but usually with their tails still inserted in their burrows . By the expansion of this part of their bodies , and with the help of the short , slightly reflexed bristles , with which their bodies ...
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...