Conversations on vegetable physiology ; comprehending the elements of botany, with their application to agriculture / Mrs. Marcet.

  • Marcet, Mrs. (Jane Haldimand), 1769-1858.
Date:
1839
Catalogue details

Licence: Public Domain Mark

Credit: Conversations on vegetable physiology ; comprehending the elements of botany, with their application to agriculture / Mrs. Marcet. Source: Wellcome Collection.

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    of Stakes and Ligatures. — Of the Annular Incision. — Passage of the Cambium ; a Portion deposited in the Cells ; its further Elaboration in those Organs. — Formation of the Spring Sap. — Water combined in Plants. — Internal Secretions from Cambium, forming peculiar .Tuices. — Milk. — Resins. — Gum. — Gum Resin. —Manna. — Essential Oil. — Fixed Oil. — Excretory Secretions from Cambium. —Vapour of Fraxinella. —Odours of Plants. — Bloom of Fruits. — Glands of Excretory Organs. — Exudations from Plants.—Mr. Macaire’s Experiments - Page 85 CONVERSATION VII. ON THE ACTION OF LIGHT AND HEAT ON PLANTS. Light enables Plants to decompose Carbonic Acid ; produces their green Colour ; increases Absorption ; increases Eva- poration. — Effects of Intensity of Light. — Effects of De- ficiency of Light. — Action of Heat on Plants. — Effects of Deficiency of Heat. — Freezing of Plants - -110 CONVERSATION VIII. ON THE NATURALISATION OF PLANTS. Plants more affected by Change of Temperature than by Change of Air, Moisture, or Soil. — Habits of Foreign Plants. — Directions for transplanting delicate Plants from a warmer Climate. — Ditto from a colder Climate. — Con- struction of Hot-houses and Green-houses - -127 CONVERSATION IX. ON THE ACTION OF THE ATMOSPHERE ON PLANTS. Temperature of the Atmosphere. — Moisture. — Fogs. — V;i- pours. — Wind. — Elevation and Temperature at which different Trees will grow - . - 1.27