. The book of garden management : Comprising information on laying out and planting Gardening -- Great Britain. 116 GARDEN MA^â¢AGEiIE^'T. force, advocating the theorj'- of electrical action in place of it, fiudiug tliat the magnet exercised no influence over the circulation ia chara, admitted afterwards the doctrine of vital force. The sensitive plant, which shrinks from the touch, the lip of Drakaea which closes under similar curcumstances, and the snap of the leaf of Dionsea, are all arguments favouring the doctrine, \vhich is confirmed by the efifect of laudanum or arsenic dropp
. The book of garden management : Comprising information on laying out and planting Gardening -- Great Britain. 116 GARDEN MA^â¢AGEiIE^'T. force, advocating the theorj'- of electrical action in place of it, fiudiug tliat the magnet exercised no influence over the circulation ia chara, admitted afterwards the doctrine of vital force. The sensitive plant, which shrinks from the touch, the lip of Drakaea which closes under similar curcumstances, and the snap of the leaf of Dionsea, are all arguments favouring the doctrine, \vhich is confirmed by the efifect of laudanum or arsenic dropped ontheleaf of plants, such as the kidney- bean or lilac, or two drops of chloroform placed on the leaf of the sensitive plant, the leaflets collapsing pair by pair at the extremity, but recovering their sensibility after some hours. 252. In a state of nature all pknts are propagated from seed, and the multifarious forms of the seeds and envelopes with which they are provided form one of the many interesting subjects of investigation to the lover of nature. For our purpose it is sufficient to state that most seeds are covered with a hard shell or envelope, which protects them from external injury ; that within the envelope lies the embryo plant. All seeds in this latent state contain an organ, or Geem, which, under favourable circumstances, shoots upwards, and becomes the stem of the plant; another, called the Radicle, â¢which seeks its place in the soil, and becomes the root; and the Seed-Lobes, â which yield nourishment to the young plant in its first stage of growth. Moistm-e, heat, and air, are necessary conditions for the development of all seeds; and most of them require, in addition, concealment from the light. These conditions are found in the open texture of well-pulverized garden soil, through which water percolates freely, and au" follows, each yielding their quota of oxygen, hydrogen, and carbon, in a gaseous state, for the support of the plant. The great
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Keywords: ., bookauthorbeetonsamue, bookpublisherlondonsobeeton, bookyear1862
