Volume 1

Experiments upon vegetables, discovering their great power of purifying the common air in the sun-shine, and of injuring it ... at night. To which is joined, a new method of examining the ... salubrity of the atmosphere / [Jan Ingenhousz].

  • Jan Ingenhousz
Date:
1779
Catalogue details

Licence: Public Domain Mark

Credit: Experiments upon vegetables, discovering their great power of purifying the common air in the sun-shine, and of injuring it ... at night. To which is joined, a new method of examining the ... salubrity of the atmosphere / [Jan Ingenhousz]. Source: Wellcome Collection.

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    ( [ XXXV ] which was Jiopt during the darknefs of the night; that this operation of the plants is more or lefs brifk in pro¬ portion to the clearnejs of the day, and the expofition of the plants more or lefs adapted to receive the dir eel influence of that great luminary; that plants /haded by high buildings, or growing under a dark Jhade of other plants, do not perform this office, but, on the contrary, throw out an air hurtful to animals} and even contaminate the air which fur- rounds them ; that this operation of plants diminifhes towards the clofe of the day, and ceafes entirely at fun-fet» except in a few plants, which continue this duty fomewhat longer than others; that this office is not performed by the whole plant, but only by the leaves and the green (talks that pur¬ port them; that acrid% ill-jcentedf c % ' and
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