The Carbon advocate. [volume] (Lehighton, Pa.) 1872-1924, 1891-11-21
EATERS OF CARBON.
Trees and Plants Grow Out OF the Air,
Not from the Ground.

Trees and Plants Grow Out Of the Air,
Not from the Ground.
Take an ordinary seltzer water siphon
and empty it till only few drops re-
main in the bottom. Then the bottle Is
full Of gas, and that gas, which will
rush out with a squirt when you press
the knob, is the stuff that plants eat
raw material Of life, both animal and
vegetable. The tree grows and lives by
taking in the carbonic acid from the air
and solidifying its carbon; the animal
grows and lives by taking the solidified
carbon from the plant and converting 1t
once more into carbonic acid.
That, In Its ideally simple form, is the
niad in nutshell the core and kernel
of biology. The whole cycle Of life is
one eternal seesaw. First the plant col
lects its carbon compounds from the afr
in the oxidized state; It deoxidizes and
rebuilds them, and then the animal pro-
ceeds to burn them by slow combustion
within its own body and to turn them
loose upon the air once more oxidized.
After which the plant starts again on
the same road as before, and the animal
also recommences da capo. And 80 on
ad infinitum.
But the point which want Particu-
| larly TO emphasize here is Just this: That
trees and plants don't grow out of the
ground at all, as most people do vainly
talk, but directly out Of the air, and
that when they die or get consumed
they return once more to the atmosphere
from which they were taken. Trees un-
deniably eat carbon.
OF course, therefore, all the ordinary
unscientifc conceptions Of how plants
feed are absolutely erroneous. Vegetable
physiology indeed got beyond those
conceptions a good hundred years ago.
But it usually takes hundred years for
the world at large to make up its lee
way. Trees don't suck up their nutri-
ment by the roots, they don't derive
their food from the soil, they don't need
to be fed like babies through tube with
terrestrial solids. The solitary instance
of an orchid hung up by string in a
conservatory on a piece Of bark ought to
be sufficient at once to dispel forever
this strange delusion-if people ever
thought; but, of course, they don't think
4 mean other people.
The true mouths and stomAchs Of
plants are not to be found in the roots,
but in the green leaves; their true food
is not sucked up from the soil, but is TN.
hailed through tiny channels from the
air; the mass of their material is carbon,
as we can all see visibly to the naked eye
when a log Of wood is reduced to char.
coal, and that carbon the leaves them.
selves drink in by thousand small
green mouths from the atmosphere
around them.
But how about the juice, the sap, the
qualities Of the soil, the manure required
is the incredulous cry of other people
What is the use Of the roots, and espe
cially of the rootlets, if they are not th'
mouths and supply tubes Of the plants
Well, plainly perceive can get ''nG
forrader," like the farmer with his claret
till I've answered that question, pro
visionally at least; so will say here a
once, without further ado, that the plan
requires drink as well as food, and tn
roots are the mouths that supply it will
water.
They also suck up a few other thing
as well, which are necessary indeed, bu
, far from forming the bulk Of the nutri
ment Many plants, however, dom
need any roots at all, while none Cal
get on without leaves as mouths ant
stomachs-that is to say, no true plant
= like plants, for some parasite plants ar
| practically to all intents and purpose
= animals. To put it briefly, every plan
Q has one set of aerial mouths to suck
J carbon, and many plants have anothe
! set Of subterranean mouths as well, +
3 suck up water and mineral constituents
-Cornhill Magazine.