The Formation of vegetable mould, through the action of worms, with observations on their habitsJ. Murray, 1895 - 328 pagini |
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Pagina 36
... angles well rounded by the fluid poured out of their mouths . But as they often drag particles of soft stone , such as of chalk , into their burrows , I feel some doubt whether the starch was used as food . Pieces of raw and roasted ...
... angles well rounded by the fluid poured out of their mouths . But as they often drag particles of soft stone , such as of chalk , into their burrows , I feel some doubt whether the starch was used as food . Pieces of raw and roasted ...
Pagina 83
... angles , though in this case the triangles offered , as might have been expected , much * In these narrow triangles the apical angle is 9 ° 34 ' , and the basal angles 85 ° 13 ' . In the broader triangles the apical angle is 19 ° 10 ...
... angles , though in this case the triangles offered , as might have been expected , much * In these narrow triangles the apical angle is 9 ° 34 ' , and the basal angles 85 ° 13 ' . In the broader triangles the apical angle is 19 ° 10 ...
Pagina 84
... angles , which was often completely engulfed in their mouths ; and lastly , by suction applied to any part of the flat surface . If lines parallel to the base and an inch apart , are drawn across a triangle with the sides three inches ...
... angles , which was often completely engulfed in their mouths ; and lastly , by suction applied to any part of the flat surface . If lines parallel to the base and an inch apart , are drawn across a triangle with the sides three inches ...
Pagina 84
... angles and the aper former would have tele ( independently of t .. being engulied in a the apex . It SA the apical ang ali the margin a & ; . * being preferred . found in 4 out angles bad apical ends the • back wit .... between t the ...
... angles and the aper former would have tele ( independently of t .. being engulied in a the apex . It SA the apical ang ali the margin a & ; . * being preferred . found in 4 out angles bad apical ends the • back wit .... between t the ...
Pagina 84
... angles , which was often completely engulfed in their mouths ; and lastly , by suction applied to any part of the flat surface . If lines parallel to the base and an inch apart , are drawn across a triangle with the sides three inches ...
... angles , which was often completely engulfed in their mouths ; and lastly , by suction applied to any part of the flat surface . If lines parallel to the base and an inch apart , are drawn across a triangle with the sides three inches ...
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...