An experimental inquiry into the cause of the ascent and descent of the sap : with some observations upon the nutrition of plants, and the cause of endosmose and exosmose / by G. Rainey.

  • Rainey, G. (George), 1801-1884.
Date:
1847
Catalogue details

Licence: Public Domain Mark

Credit: An experimental inquiry into the cause of the ascent and descent of the sap : with some observations upon the nutrition of plants, and the cause of endosmose and exosmose / by G. Rainey. Source: Wellcome Collection.

Provider: This material has been provided by The Royal College of Surgeons of England. The original may be consulted at The Royal College of Surgeons of England.

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    The series of experiments described in the following pages, were commenced as early as 1840. A short account of some of the experiments relative to the tissue occupied by the crude sap in its ascent and diffusion in plants, as well as some observations upon the descent of the elaborated fluid, were communi- cated to the Royal Society in 1842 ; but the principal part of the experiments therein recorded have been performed since that period. After the manuscript of this Essay had been placed in the hands of the printer, my attention was directed to some observa- tions in one of the publications of the Ray Society, purporting to be an account of my views upon the ascent of the sap. These observations appear to be founded upon the abstracts of some papers read at the Royal Society, and printed in the Annals of Natural History, vol. xi, p. 383. Not having seen these abstracts, I am unable to judge how far the report given of them in the above Journal agrees with the • abstracts themselves; suffice it to say, that neither the experiment of steeping thin slices of a plant in a solution of the Bichloride of Mercury, and then de- composing this substance by the Iodide of Potassium, nor the opinions therein attributed to me, as to the