Nebraska advertiser., 1862-10-25

!. :. = ! ! =
- - - -
known that this gas has great affinity
for water would supply all parts, and
will mix with 1t in all directions whenever
it comes in contact with IT. Trees and
plants are as conductors of electricity frorl
the earth TO the air. and from the air to
the earth. Livery sprig, every point OF
leaf, acts as conductor for the fluid in
passing. Some have doubted whether
there is electrical disturbance sufficient
to cause action enough - produce such
an effect, but electricians have proved
that the electricity of the atmosphere is
very variable; that it's at its maximum
at one time of day. and at lis minimum
at another. Hence when il Is at It's max
imum in the air, the earth must be neg
alive to ii, and the earth will receive a
portion; and when al It's minimum in the
air, the earth will be positive, and then
give off a portion to the air, thus keeping
up current between The air and the
earth. Electricry having an attraction
for water, viii pass through the sap of
plants in preference, precisely where the
gas is to be decomposed. -.
"Here then we have theory for the
circulation of the sap, at least for the re-
quirements of growth; one that is plain
and simple, yet meets all the require-
ments of the case; one that is based on
facts that We do know. and but little left
TO conjecture. At the fall of the leaf in
autumn the body Of the tree has but lit
tie sap;. the pores of the wood are mostly
filled with AIR. During the fall and
winter, Whenever The earth and air. are
above the, freezing point, the roots are
imbibing tmoi5lure Whelh'r this is by
capillary attraction or not leave, but
presume 1T, is by that power, as water
will penetrate every body not positively
lmpervlous, where the IS less water. By
the time that warm weather returns IN
spring. this sap thus lying in the pores
through the winter, undergoeS some
Chemical change, converting part into
sacrharme matter This matter thus
furnishes the, nectar of flowers. and is
conspicuous in early Towering trees like
the naples, for instance, that blossom
early, Almost all trees will .urnish sap
at the first hOw that may be made into
sugar, hut some, as fhe' NAPLES, more
freely than others. This first. flow of
sap takes place in'ihe wiurer often, when
there comes warm days andfroSly nights,
and frequently when the ground is fro
zen; bur the ground being frozen is no
evidence that the tree and its roots are
frozen, for living plants wlllresist much
lower temperature without freezing than
dead matter will. The roots oftrees are
often far below the frost, audi may be
supposed to be a conductor Of that tenn
perature upward As soon as The warm
weather induces full flow of sap, the
saccharine sap is diluted, and carried up
ward, and no sugar can then be made
| from the body Of the tree. This full flow
of sap fills every pore of The tree; and
as warm weather advances causes The bud
! to burst and the leaves to expand, and
these then become the medium of giving
off the moisture of the sap, leaving the
matters for growth behind. Thus carbon,
gums. rosins, potash, etc., are depo lled
! ach in its placA The philosophical ed !.
lt0r of the Flores des SerrpS.' OF Belgium,
um. saws that The Offices of the leaves ar
chiefly perspiratory, and that they will
he SO acknowledged some day Many
Others are coming to be of lhIs opinion.
From the great quanuty of water
know to be givs off from the leaves of
vegetables while growing, We may rea-
souably conclude that matter enough for
growth is carried up by the sap TO ac-
count for all we see. even suppOstg that
the amount is small IN a given quanty Of
water. The continual rising Of this mat
ter, and being left for growth, would first
make 1t app ar as milky, as | have OBJ
served in early spring on taking of the
bark of oak timber; as 1t becomes more
dense it would assume Jelly y-Iike ap-
pearance, as | have witnessed 10 taking
off th- bark Of apple tree, abou; the 20 b
! day of the first summer month, to try 10
cure such trees of the bitter rot. Tnen,
again, at the fall of the leaf, it has be-
COltle llIln NOOt, duu at biIIo oChSOll tilCaO
Is little water IN growing wood, less than
at any other season In late summer
aud early fall. we often have dry wealth
er, favorable for we'll rlpenIng VOID, but
sometimes we have wet IN The tall SO as
To start late growth; we then know that
such late wocd Is not able 70 stand the
winler safely, bul is often injured, ,paruC-
ularly if cold sets in early. Late grow
ing plants are more liable to he Injured
IN this way, lhaI Ihose that perfect Their
growth Early The oak and similar trees
4hal never start into second growth the
same season, do not suffer Ia this way.
4 A.We have reason to believe that the
roots os perennial plants lake in water as
zap at all seasons, exe~pt when interrupt
ed by drodth or frost, either of which
prevent it. Thus in fall aId winter IN
mid weather. a supply IS laii up for ac-
i've use. wheh the warmth Of spring shal
induce active growth"
MiSceIIanieS..
Il VINO is OLD "A wise man will new