The Formation of Vegetable Mould Through the Action of Worms: With Observations on Their HabitsAppleton, 1892 - 326 pagini |
Din interiorul cărții
Rezultatele 1 - 5 din 43
Pagina 7
... formed in the anterior pair of glands - The calcareous matter primarily an excre- tion , but secondarily serves to neutralise the acids generated during the digestive process 8-54 CHAPTER II . HABITS OF WORMS - continued . Manner.
... formed in the anterior pair of glands - The calcareous matter primarily an excre- tion , but secondarily serves to neutralise the acids generated during the digestive process 8-54 CHAPTER II . HABITS OF WORMS - continued . Manner.
Pagina 7
... matter which it contains - Depth to which worms burrow , and the construction of their burrows - Burrows lined with castings , and in the upper part with leaves -- The lowest part paved with little stones or seeds- Manner in which the ...
... matter which it contains - Depth to which worms burrow , and the construction of their burrows - Burrows lined with castings , and in the upper part with leaves -- The lowest part paved with little stones or seeds- Manner in which the ...
Pagina 8
... matter primarily an excretion , but secondarily serves to neutralise the acids generated during the digestive process . EARTH - WORMS are distributed throughout the world under the form of a few genera , which externally are closely ...
... matter primarily an excretion , but secondarily serves to neutralise the acids generated during the digestive process . EARTH - WORMS are distributed throughout the world under the form of a few genera , which externally are closely ...
Pagina 35
... matter which it may contain ; but to this subject I must recur . They also con- sume a large number of half - decayed leaves of all kinds , excepting a few which have an unpleasant taste or are too tough for them : likewise petioles ...
... matter which it may contain ; but to this subject I must recur . They also con- sume a large number of half - decayed leaves of all kinds , excepting a few which have an unpleasant taste or are too tough for them : likewise petioles ...
Pagina 41
... matter . These effects must be attributed to the trans- udation of the secretion through the epidermis into the cells . The secretion with which worms moisten leaves likewise acts on the starch granules within the cells . My son ...
... matter . These effects must be attributed to the trans- udation of the secretion through the epidermis into the cells . The secretion with which worms moisten leaves likewise acts on the starch granules within the cells . My son ...
Alte ediții - Afișează-le pe toate
The Formation of Vegetable Mould: Through the Action of Worms, with ... Charles Darwin Vizualizare completă - 1896 |
The Formation of Vegetable Mould, Through the Action of Worms, with ... Charles Darwin Vizualizare completă - 1898 |
The formation of vegetable mould, through the action of worms, with Charles Darwin Vizualizare completă - 1897 |
Termeni și expresii frecvente
accumulated acetic acid acid action of worms alimentary canal amount angle animals apex appear basal base Beaulieu Abbey beneath the surface blown bodies brought buried burrows calciferous carbonic acid cells cent chalk Cloth concrete covered depth disintegration doubt dragged drawn earth feet field flints floor formed fragments gizzards glands grass ground heavy rain Hensen holes Illustrations inches beneath inches deep inches in thickness inches thick intestines JOSEPH LE CONTE Knole Park lamellæ land large number larvæ layer leaf leaves ledges Leith Hill Place lime Maer Hall manner matter mortar mouths nearly objects observed particles pasture pavement penetrated Perrier petioles pharynx 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 upper vegetable mould walls washed weather weight whilst worm-castings worms
Pasaje populare
Pagina 1 - II. Physics and Politics ; or, Thoughts on the Application of the Principles of "Natural Selection " and " Inheritance
Pagina 2 - XVIII. THE NATURE OF LIGHT. With a General Account of Physical Optics.
Pagina 2 - XXIII. Studies in Spectrum Analysis. By J. Norman Lockyer, FRS With six photographic Illustrations of Spectra, and numerous engravings on Wood.