Green-Mountain freeman. [volume] (Montpelier, Vt.) 1844-1884, 1876-07-19
agricultural.
Fact. About Plant trUiyth.

I
Al ...,,...rl .,...,,.. ,,,t ,l,... ,.,r.,in
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.11..1 ,..,....o,I ann. Iut.uis. .,ftr,
in,,h., Nm. nov, tt,..,i,. of i. ,.ircul,tjon
w., ,h.ori.. I,,..I upun c>n,,imcnt. buI
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,,,nr.. -h,,IL fake vithout ,akino IN,
,r,,,i,l.. f., invr.ti.,,t..i in d,taiI >urh the
,r;... .,,,. .,I,,.,v. f,n of orr,, and Will.
.t..lI l-,. dawn ~, r..,nl.,r ,nI.. ca, nature
t,.wo,k bv.,s b.Ii.v.tb,t the ..ircnl,-
,;.n of sem IN all ,I,n.. may M, h. nro-
lnc.l in tb,. same manner. I Shall sneak
If observations u,.,d,. Inv uv.,lf,nd Others
illustrative. # f,rt. in su,h ,.r.nlnrion in
,..,,;,n. vn,,ot.,llo ,,olil... most familiar
,.,.u In i-3,r.,. >,..,,I,..n u.,l,s ~ En-.
l,,nJ oi,..rvin. = cram. vim. bL.,lju.
,h,,,l.,,tI, and t.,rir., ,ninrv rn1,.,v,rr,
- .t,n Tho. flow hv tyin,, , ~, &C, of h1,,]d.
,,-..i il III. wa. E,r,itlv ..i.,cnd.I am,
L,.,,..,.IoJ ,,,,..,,,. anal ~. .,.,;...
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three feet high Almost all writer's ol
plant growth since that time have s:li,
,.,,,.,,,;o,. ,h,,,, ,li. ,,.,.;,,,, IN,
,i'.,i,,. ,,.l,, ,t,l:. ,.f,..
orally in SIP circulation in different plants.
Led 10y the treat flow OF maple sap II,
lSji 70 investigate specially the II ~
maple, found that bV .ercwinr 4 >tol
cork. with u pipe attached, into u tree. tina
the sap would ri>c in he tube 10 he top @
the hi1he,t br,nc' ON tie tree subjected I,
the eXpel imcllt, and -on,timc> Il few
inches higher. Finding also that jic pro
portiunatr amount of sap discharged Wa
according - The height above the tapping
- though the sap stood on rr-~.Irc in I'll,
tree. W., L.! to- examine further int" III,
circulation and found. after freezing. a mi
-ro-cupic change in The zap wood. show
me rupture of the menNranojs partitions
AMI enlargement of thc ducts themselves.
This is doub Ic~- the result IF lrce/nr an,,
~ the odt>ilc of TIE tree ir,czce fist there
j. Il prt-~.ir ire also tXrItr,i bv the EXPANSION
Of the sap tending to force il in towards
the center Of thu tree. AMI u greater
;tmount oil sap * found after 4 >''vvre hctz,
III the heart of 4 tree than At any Other
time In this way it will IL" seen !hat TIL,
SAP my in reality be held in large part OF
pressure and leak - It appears L.. IN the
mapl". from the ducts cut OF iii tapping.
Is t''~t n their capacity Will admit of. The
variation ! however very -r":u DE-, WEI
llams in his history OF Vermont, ~1y>. "A
nun much employed III miAln4 maple II
gar, found that for tWs'nty-onc days tngcth
er a maple tree discharge! seven and :.
half gallons per day. This Wn1ll make
Il total of one hundred and ifty->cvcn Cd
Ions, from single tree. An American
Agricultural Journal in 1872 stated that
twenty gallons OF sap WAS drawn in ci-h-
teen hours from 4 >ln3 !" lpi" tree, two
AMI II hui i""t III diam"t"r III Warren.
New Hampshire; Emerson IN lis "lfec>
OF Massachusetts mentions = maple >l>
feet IN diameter winch Ni'ide| 4 barrel Of
sap IN twenty-four hours and ct another
tree III Il welded one hundred an" seventy
I'VE @''llohs III course Oh ''ie >'a-''n' y
maple tree III TINS town i"r several YEAR
yielded on an average thirty pounds Of
sugar ""'eh "'"!' h''''>S''''' '''nt SIN
''''''.'' i''''''9 u sap per '''''''i'' / nave
NV ',.p'' S'P - NO" = an s'''>'.','