The Formation of vegetable mould, through the action of worms, with observations on their habitsJ. Murray, 1895 - 328 pagini |
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Pagina
... gizzards of worms- Swallowed stones serve as millstones - The levigated state of the castings - Fragments of brick in the castings over ancient buildings well rounded . triturating power of worms not quite insignificant under a ...
... gizzards of worms- Swallowed stones serve as millstones - The levigated state of the castings - Fragments of brick in the castings over ancient buildings well rounded . triturating power of worms not quite insignificant under a ...
Pagina
... gizzards of worms- Swallowed stones serve as millstones - The levigated state of the castings - Fragments of brick in the castings over ancient buildings well rounded . triturating power of worms not quite insignificant under a ...
... gizzards of worms- Swallowed stones serve as millstones - The levigated state of the castings - Fragments of brick in the castings over ancient buildings well rounded . triturating power of worms not quite insignificant under a ...
Pagina 18
... gizzards and intestines . As it is certain that worms swal- low many little stones , in- dependently of those swal- lowed while excavating their burrows , it is prob- able that they serve , like mill - stones , to triturate their food ...
... gizzards and intestines . As it is certain that worms swal- low many little stones , in- dependently of those swal- lowed while excavating their burrows , it is prob- able that they serve , like mill - stones , to triturate their food ...
Pagina 54
... be of quite subordinate importance , seeing that the object is already attained by stones being generally present in the gizzards and intestines of worms . CHAPTER II . HABITS OF WORMS - continued . Manner 54 СПАР . І. HABITS OF WORMS .
... be of quite subordinate importance , seeing that the object is already attained by stones being generally present in the gizzards and intestines of worms . CHAPTER II . HABITS OF WORMS - continued . Manner 54 СПАР . І. HABITS OF WORMS .
Pagina 104
... gizzards of worms may largely aid in supporting them . When- ever castings are thrown up in the greatest number , few or no leaves are drawn into the burrows ; for instance the turf along a hedge- row , about 200 yards in length , was ...
... gizzards of worms may largely aid in supporting them . When- ever castings are thrown up in the greatest number , few or no leaves are drawn into the burrows ; for instance the turf along a hedge- row , about 200 yards in length , was ...
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...