Volume 1

The philosophy of health ; or, an exposition of the physical and mental constitution of man, with a view to the promotion of human longevity and happiness / by Southwood Smith.

  • Smith, Southwood, 1788-1861.
Date:
1847
Catalogue details

Licence: Public Domain Mark

Credit: The philosophy of health ; or, an exposition of the physical and mental constitution of man, with a view to the promotion of human longevity and happiness / by Southwood Smith. Source: Wellcome Collection.

Provider: This material has been provided by London School of Hygiene & Tropical Medicine Library & Archives Service. The original may be consulted at London School of Hygiene & Tropical Medicine Library & Archives Service.

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    cellular structure. Fig. III. 1, shows this struc- ture as it appears when the object is magnified. The office of this organ is to absorb the aliment of the plant from the soil; and so great is its absorb- ing power, that, as is proved by direct experiment, it absorbs the colouring molecules of liquids, though these molecules will not enter the ordinary pores, which are of much greater magnitude. With the spongeoles are connected vessels which pass through the substance of the stem or trunk to the leaf. Fig. III. 2, shows these tubes springing from the cellular structure of the spon- geole, and passing up to the stem or trunk. Fig. IV. 2, exhibits a magnified view of the appear- ance of the mouths of these tubes on making an horizontal section of the spongeole. Fig. V. Ill, exhibits a view of these tubes passing to the leaf. Figs. VI. and VII. 1111, show these vessels spread out upon, and ramifying through, the leaf. The crude aliment, borne by these tubes to the leaf, is there converted into proper nutri- ment; and from the leaf, when duly elaborated,