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 42
Pagina
... grass - fields are covered up by the castings of worms -The burial of a paved path - The slow subsidence of great stones left on the surface - The number of worms which live within a given space - The weight of earth ejected from a ...
... grass - fields are covered up by the castings of worms -The burial of a paved path - The slow subsidence of great stones left on the surface - The number of worms which live within a given space - The weight of earth ejected from a ...
Pagina
... grass - fields are covered up by the castings of worms -The burial of a paved path - The slow subsidence of great stones left on the surface - The number of worms which live within a given space - The weight of earth ejected from a ...
... grass - fields are covered up by the castings of worms -The burial of a paved path - The slow subsidence of great stones left on the surface - The number of worms which live within a given space - The weight of earth ejected from a ...
Pagina
... grass - covered surfaces - The amount of earth which annually flows downwards — The effect of tropical rain on worm castings - The finest particles of earth washed completely away from castings - The disintegration of dried castings ...
... grass - covered surfaces - The amount of earth which annually flows downwards — The effect of tropical rain on worm castings - The finest particles of earth washed completely away from castings - The disintegration of dried castings ...
Pagina
... grass - covered surfaces - The amount of earth which annually flows downwards — The effect of tropical rain on worm castings - The finest particles of earth washed completely away from castings - The disintegration of dried castings ...
... grass - covered surfaces - The amount of earth which annually flows downwards — The effect of tropical rain on worm castings - The finest particles of earth washed completely away from castings - The disintegration of dried castings ...
Pagina 9
... grass short and thin . But they are almost or quite as numerous in some of the London parks , where the grass grows well and the soil appears rich . Even on the same field worms are much more frequent in some places than in others ...
... grass short and thin . But they are almost or quite as numerous in some of the London parks , where the grass grows well and the soil appears rich . Even on the same field worms are much more frequent in some places than in others ...
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...