The Formation of vegetable mould, through the action of worms, with observations on their habitsJ. Murray, 1895 - 328 pagini |
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Pagina 2
... removed at not a very slow rate , and are replaced by others due to the disintegration of the underlying materials . 66 As I was led to keep in my study during many months worms in pots filled with earth , * ' Leçons de Géologie ...
... removed at not a very slow rate , and are replaced by others due to the disintegration of the underlying materials . 66 As I was led to keep in my study during many months worms in pots filled with earth , * ' Leçons de Géologie ...
Pagina 5
... removed , the whole surface will be found strewed with castings . Dr. King , the superintendent of the Botanic Garden in Calcutta , to whose kindness I am indebted for many observations on earth- worms , informs me that he found , near ...
... removed , the whole surface will be found strewed with castings . Dr. King , the superintendent of the Botanic Garden in Calcutta , to whose kindness I am indebted for many observations on earth- worms , informs me that he found , near ...
Pagina 16
... removed , the end of the worm's body may very often be seen rapidly retreating . This habit of lying near the surface leads to their destruction to an immense extent . Every morning during cer- tain seasons of the year , the thrushes ...
... removed , the end of the worm's body may very often be seen rapidly retreating . This habit of lying near the surface leads to their destruction to an immense extent . Every morning during cer- tain seasons of the year , the thrushes ...
Pagina 28
... removing the glass plates . When a worm first comes out of its burrow , it generally moves the much ex- tended anterior extremity of its body from side to side in all directions , apparently as an organ of touch ; and there is some ...
... removing the glass plates . When a worm first comes out of its burrow , it generally moves the much ex- tended anterior extremity of its body from side to side in all directions , apparently as an organ of touch ; and there is some ...
Pagina 30
... removed in the course of two hours ; three were removed by the next morning , that is , after a single night ; two others after two nights ; and the seventh bit after three nights . Two pieces of onion were discovered and removed after ...
... removed in the course of two hours ; three were removed by the next morning , that is , after a single night ; two others after two nights ; and the seventh bit after three nights . Two pieces of onion were discovered and removed after ...
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...