File:Vegetable staticks, or, An account of some statical experiments on the sap in vegetables - being an essay towards a natural history of vegetation - Also, a specimen of an attempt to analyse the air, (14802162043).jpg

Identifier: vegetablestatick00hale (find matches)
Title: Vegetable staticks, or, An account of some statical experiments on the sap in vegetables : being an essay towards a natural history of vegetation : Also, a specimen of an attempt to analyse the air, by a great variety of chymio-statical experiments, which were read at several meetings before the Royal Society
Year: 1727 (1720s)
Authors: Hales, Stephen, 1677-1761 Gribelin, Simon, 1661 or 2-1733, engraver Royal Society (Great Britain) Burndy Library, donor. DSI
Subjects: Plant physiology Air
Publisher: London : Printed for W. and J. Innys ... and T. Woodward ...
Contributing Library: Smithsonian Libraries
Digitizing Sponsor: Biodiversity Heritage Library

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Text Appearing Before Image:
that is ufually found in the feeds,and their containing veffels, than in otherparts of plants, fhews that more fulphur andair is requifite for their production, than thereis for the production of wood and leaves. But the mod confiderable objection a-gainfl: this progreffive motion of the fap,without a circulation, arifes from hence, viz.that it is too precipitate a courfe, for a duedigeftion of the fap, in order to nutrition :Whereas in animals nature has provided,that many parts of the blood mail run along courfe, before they are either appliedto nutrition, or difcharged from the animal. But when we confider, that the greatwork of nutrition, in vegetables as well asanimals, (I mean after the nutriment is gotinto the veins and arteries of animals) is chief-ly carried on in the fine capillary veffels,where nature fele&s and combines, as mailbed fuit her different purpofes, the feveralmutually attracting nutritious particles, whichwere hitherto kept disjoined by the motion of stg.az
Text Appearing After Image:
o. 146 5. ft Vegetable Statkks. i 47 of their fluid vehicle 5 we fhall find thatnature has made an abundant provisionfor this work in the ftru&ure of vegetables 5all whofe compofuion is made up of no-thing clfe but innumerable fine capillaryveffels, and glandulous portions or vcficles. Upon the whole, I think we have, fromthefe experiments and obfervations, fuffici-ent ground to believe that there is no circu-lation of the fap in vegetables ,• notwith-ftanding many ingenious perfons have beeninduced to think there was, from feveral cu-rious obfervations and experiments, whichevidently prove, that the fap does in fomcmeafure recede from the top towards thelower parts of plants, whence they werewith good probability of reafon induced tothink that the fap circulated. The likelieft method effe&ually and con-vincingly to determine this difficulty, whe-ther the fap circulates or not, would be byocular infpedion, if that could be attained:And I fee no reafon we have to defpair ofit

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