The Formation of vegetable mould, through the action of worms, with observations on their habitsJ. Murray, 1895 - 328 pagini |
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Pagina 16
... fresh air , for we have seen that they can live for a long time under water . I believe that they lie near the surface for the sake of warmth , es- pecially in the morning ; and we shall here- after find that they often coat the mouths ...
... fresh air , for we have seen that they can live for a long time under water . I believe that they lie near the surface for the sake of warmth , es- pecially in the morning ; and we shall here- after find that they often coat the mouths ...
Pagina 30
... fresh and half - decayed cabbage - leaves and of onion bulbs were on nine occasions buried in my pots , beneath about of an inch of common garden soil ; and they were always discovered by the worms . One bit of cabbage was dis- covered ...
... fresh and half - decayed cabbage - leaves and of onion bulbs were on nine occasions buried in my pots , beneath about of an inch of common garden soil ; and they were always discovered by the worms . One bit of cabbage was dis- covered ...
Pagina 32
... fresh leaves of a common green variety and of the red variety used for pickling were given them , and they preferred the green , the red being either wholly neglected or much less gnawed . On two other occasions , how- ever , they ...
... fresh leaves of a common green variety and of the red variety used for pickling were given them , and they preferred the green , the red being either wholly neglected or much less gnawed . On two other occasions , how- ever , they ...
Pagina 36
... fresh leaves , as I have found by repeated trials . According to Morren * they will eat particles of sugar and liquorice ; and the worms which I kept drew many bits of dry starch into their burrows , and a large bit had its angles well ...
... fresh leaves , as I have found by repeated trials . According to Morren * they will eat particles of sugar and liquorice ; and the worms which I kept drew many bits of dry starch into their burrows , and a large bit had its angles well ...
Pagina 37
... 1878 . ‡ Schmulewitsch , ' Action des Sucs digestifs sur la Cellulose . ' Bull . de l'Acad . Imp . de St. Pétersbourg , tom . xxv . p . 549 . 1879 . The half - decayed or fresh leaves which worms intend СПАР . І. 37 FOOD AND DIGESTION .
... 1878 . ‡ Schmulewitsch , ' Action des Sucs digestifs sur la Cellulose . ' Bull . de l'Acad . Imp . de St. Pétersbourg , tom . xxv . p . 549 . 1879 . The half - decayed or fresh leaves which worms intend СПАР . І. 37 FOOD AND DIGESTION .
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...