, 1879-01-03
EApS, MISSISSIPPI JETTIES.

Their Failure ~ Far n. They Have Deen
Conslructeu-What nn Army Engineer
Thinks ol Them, aud What lilo Has to Say
on the Effect OF the WooA-EatluK Worms
ON the Willows Used In Tl,att Construc-
tion.
NtH,ph&s Atalanchs,
Tho latest annual report upon tho improve
mcnt Of South Pass (tha jctttcs). mado by Capt.
". X. Brown, u. s. A., engineer Ia charge Of
tho work, to the War Department, has been ro-
ccived. It records operations to July 4, 1B7s
On pago % Capt Brown Il compelled 10 admit
that the cross-cursents at the sea end Of tho
tettlcs rolled OF by Capt. Fails to curry tho sea-
hnent cut Into tho deco waters Of tho Gutt, do
not appcar when wanted. 1le says "thcy nrc
soIdom absent at soms distance below tho
rurtaeo In decn water" but all tests fur
their existence near the ends Of tho tettiea hayo
{s e Ana n ..Te os sao
sediment "a thus disposed Of, but Il III known
tllat IL pllca up outside, bayold thn sea-enda Of
of tho jetttes. Thu only absolutely rtllablt
watcsi4 Ia tho eolumna ot the 1ctsy Journals tl,at
ea, And space for only facts OK iatsinforsnation
favoring tho Eais enterprise. -
Another point brought out by Capt Browns
report bears on tho wool-cattnK worms. the
..trtedo," which, - nas Leea nos!s enafgea aha e.
Willows used !n constructing tue 1sttiss. Tbs
otlieial report develops the fact that "svcn the
small willow twtKs arc subject TO the raTaGea Of
the lcrcdo." Capt brown says;
arst observed In preember. 1k1o, the specimens
Of pine attacked having been ia thg jetties
about eight months; Ia ths nnnsa q January, MI :,
H. ts1 l:,sat wI~ snd aaas a' liz
aumahly nlne fest bslow tho surface. since aaen
many 3nvcstlxat.ona iato lbe conditions Of ths
besn made, and tho invaE.ahlo result has been 10
ind laat w!ilows OF ihs mattresses in the 10 sef
tiurs VI tls outer ends VI lhs sttlss re bully q.
ircled, sometimes " partial disntegratiun; No
lEaccs OF worms have been found IN tbs tctttos
aboye point 10, 000 feet below East Point. ot
l.710 feet aboya tins lowes end Of shc east 1etty
hpb mono hare bern ohservcd nearer than fUnr and
urlf fcsl to the sugfaca OF watsr at any point.
Tho agile teredo u evidently making himself
| At hoknu gmong the jetty willows. Judging toe
future by the laat, It 10 only qnestion " time
| when tho wood-eastnE wurtns Will !stefaiIy ae
stroy tho chief material used in The lctt!cx. 70
twecu khu Increasing bur outside tho tea ctnis
! the ever-shitting mud -lunpat aud tho fEo!l,
aono tstcdu, Capt. Eatla Will aud it hard work
to Keep matteEs stralGlt. However, there ar
the syer-islthtul uewspapers. They discover ~ "
.nud.lumps. They have never heard OF tno bal
| ou thc outside, aud they Will bear teai!tnonl
| tnat 10 tereuo Inns tycr haa the AAdacitY 10 In
scrt hla tAolafs iu one Of ths {etty w.!lo"s.
Hut. seriously, even assuming Tor ths sake o
| argument, that Capt Eals can, nilt,cr the 1ctt1
system, ohtain twenty-five or twenty-ctght fee
Of water within tho walls. aud overcome ~
distractions beyond the aca.ends, how arc tnt
yayAges Of tbs testlya tcrclo to " oe stopped
AMI, II uot stopped. how long VIII lt 70 eefof'
soas out Into tho Guiti 1t win bs boFne II
lniud that the lcttica arc deslgacd nA perma
penl Improvement, for WHICH Capt, k1d& b.
rlrcady received $l,50.0n Of tho psop1o'
rh. fass g!sss VITALITY 70 ehe ?af.sion htton
they vote auother dollar to Keep up Capt
| Euiss exploded lefty sYSteM-