The Atlanta constitution., 1900-11-12
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4
field to be terraced. AMI as far from where
| The first terrace line will commence as
| the operator can see the target distinctly
| tbrourh the siehts. ~ means Of ll@
! icvelinG screws Cor othcr apphahco ioi
/ lcveling the sighting tube) ADJUST 20
| perfect level. Brlny the stan % the slde
! of the instrument AMI slide the target
| , ntiI its center is exactly pn line WIN
| the sights Then slide ii up Just three
! feet higher and secure il i'm that position
| The assistant now goes directly down tho
! slope until he judges that he has reachVu
| a point about three feet lower lhiu lud'
al which the instrument is located ~
faces .he operator and at slSll'hS ltph
TN, latter mov - the staff up or down thc
nil. holdins ii i'm perpenCicular position
until the target is m level line with the
sights of IN, instrument. when the opcr-
| ator will crv that's riSht. Che cclll-
mands, up" and down mean that the
stan must he moNel up ot down Tue
slopcD Tine assistant noN Sucks
tv-eIve-inch pcs at the foot OF the stan
and Immediately moves H." latl'r ap"'
afteen feet along the level ilhe '"N't' ''o
beginning place OF the terrace ine. an"
rencats Inc operatiol just .scribed as
/ directed by the operator, and 80 3n uh'i
! he reaches tn. Oo ginning end. lie ln'h
goes back under the d. ciion 81 1"'
, opcrator To tie next :utcch-l"oi S'd'l'"
brvonl the first location. the operator
turns his sights ON the st"u again. ana 80
on until th. other end pf the terrace IN
il reached or until the Stau gets as l't
= the operator can see an" ltTES' "
tnctlv. When this last point IS i"deh'u'
ib,. assistant holds the stan n its posi-
tion Tho operator moves has inStfdmrht
4iong "a the direction of he other ehd 81
an. projected GRACE line as 50 lar as ~
..n look back and see inc target ~
nuw sets up thc tripod levels MS luN'l az
fueut accurately. looks through the SishlS
4. thc staff. directs the assistant 10 S'i'e
H., tar2et up or down uutu IL '"iit'l"'H
with he sights. the assistant sots his pes
J removes his sian 90 another hft''h-i""'
station and So ON as before.
when thc farther end ~ The terrace hEe
Is ron he'd hy tire assistant the target may
be slid ~ three feet higher. II tn' -,''h
is long enough. ana drop down thr Stop
80 begin she n"St terrace Hhe. Al '',
. stam should oe too short to admit ~
nnyinr IN. target three fcet higher. then
4 Tho. assistant should bee dire ted 10 h"id
tuc stan i'm the last position OF thH iht
Just run ;he operator moves his i"N'LH|
/ Instrument ..owu th. slope to al 1ut where
4 The aoNt terra .e line vii run. adjusts lhe
3 sighting tuhe. turns il % tho stan, dlr'c's
: tine target L. bc slid down uuth ON
. lcacl line with the sights. then directs IL
/ To- b.. slid up three feet higher and %tcur-
Z ed The assistant linen goes down IN
. slope [. about thc supposed location 81
7 th,. next tciraca line ANA the work goes
+ on as described unul the loves. point ia
th. f-ld or portion OF The a-iL =
reached.
Il - very well sometimes. TO mark the
first 3nd last position of th, -ta1 on cach
terrace. nn,. hv driving a pin down. or set-
tjng n stone. 81 that the top Of Tie pin,
or az III. stone. small bo al iusl the same
2 l.,ei al which the foot ot the stsn Wa
he'd.
( Rectifving the Terrace Line.
At any time tho operator may quit his
Instrument and direct the permanent ad-
I ms,ment OF the lines already marked by
\ tn. pegs. Such q line Will be more or
! less of "A zigzag contour and WI require
\ 10 have IT'S angles rounded into graceful
curves. some do this by simply leaving
I i, Ia the Judgment OF the powman who
runs thc first furrow in throwing up the
terrace bank. but I think the best Juds-
mrut Of the operator. more carefully
exercised than may be- done with "a re
fractorv mule and unskilicd plowmau. Is
Z here called into play. he sh.uld 90 along
the line Of pegs. moving one or more
little up tho slope, others down the slope.
/ so as to form "a series of gradual and
2
forth. often several times times, until
! satisfied with the adjustment. THESE ir-
. r.sularities in the lime OF pegs is caused
bv placing the staff sometime an l.t,le
depression 0ocaD. or ON slight ",eva-
tion. The practiccd assistant will learn
/ L. avoid this, As far as practicable.
Ii will bc found that where thr iudi-
I Gated terrace ,ine crosses AIN iuciuicut
wash or AN old filled up gully 70 Will
chR1i1 lao
modified as far as permissible requiring
the building up and strengthening the
z terrac.. bank Whcrc il crosses such dee
preston lower down The hin.
Flowing the Terrace Bank.
/ This is heSt dome with D two-ho~se turn
plow. ruuuirg along just above thc line
/ of pegs aud throwing the first turrow up
I the hill. Return ou the upper side of the
first furrow aud throw the SECOND lurruw
2 down the hill. forming broad list Run
/ another round. one furrow above, the
+ other below. making broad bed
. Now comes "a detail that nly experience
I leads me- TO insist upon. although ] have
never seen It n print non ~ practice,
excepting in my own practice Tho .ouse
! bed should bc smuothcd over from end
I 10 .ud with harrow ana then a roller.
3 or a heavy dray $50 as 90 compact On"
2 soil as much aS possible. The lcNelin"
instrument should Doe used and the stan
placed every f.W feet along the bed In
order TO detect amy high or low place.
/ especially the lsttor. The high places
should bc l,veled down and the 4oW places
{ bc built up with some more soil and
d well troddcu down or rammed with
sod maui I consider this going ov1r
/ and verifying the level OF the surface ot
I the bed a very important point. There
/ will bc hard knobs whore the piow VIII
/ not throw ui, much soil and the bank
3 will be too low. There Will be natural
Z deprrssious in tho surface OF the field
/ where Watcr is inclined 10 gather into
. volume and force. These places should be
, built "a few inches higher than th, gcn-
cral level Cf the bank and well rlmmed
/ down II is well 10 gather the loose
( stones near by aud cover them zip into
th. bank at these threatened places.
After the terrace bank is finished II
f need nos stand more Than a icW Inches
higher than the general surface. I Do not
J i'ke thu idea of building up huge bank
or dam. oI permitting such a dam To- grow
higher from the effects of the annual
turning Of the furrows down Tho hin IN
breaking the land.
Flowing ON Terraced Land.
The arnIal breaking should bc done
with a hillside or reversible plow, turning
all the burrows down the hili. IL will De
neccs sary TO put in short burrows in nm
ishlng the upper edges of the terraces in