New-York tribune., 1905-11-03
DEATH TO MOSQUITOES.
SYSTEMATIC VAR BEGUN.
Health Officer Doty Conducting
Crusade ON Staten Island.

Dr Doty. Health Officer Of the Port, has Just
bs~uu on Staten Island interesting ard highly
nracttcaI work. For many years the idea has pre-
vailed that mosquitoes of all kinds breed In stand
ing water only Dr. John B. Smith. State Ento-
molossst OF New-Jersey. the first to dsDroVs
this While working independently, Dr. Doty ar
rived at the same conclusion DR.. Spiith.
About 50 per cont Of the Staten Island mosquitoes
he found to be of the striped leg type known o!
scientists as Cuiex soilicitans These mosquitoes
found well inland. set cultures from the esss'
or larvee upon fresh water pools, rain Dsfreis.
pans etc. failed to reveal single one OF tns Va
riety The old method Of spr:nklng petroleum
over this water was thus shown 20 be useless SO
far rs destroying the most numerous type is con-
cerned-
The question arose: Where do the striped leg nos-
qu.toes breed7 DR.. Doty found that they lay their
eggs In the mud under the water OF a salt wa.sr
marsh. and that the warm tides cause these 10
hatch out ia few hours and then grow into ElhSso
insects The larvss are shaped Ike tiny cigars arc
Enclosed IN a shell, through one emu oA "iiio1
they break out.
Now that tha embryo is out OF It's shell, the wafer
left from the tide develops 1t into the winged mos
ouito To spread petroleum on this DOGGY iaho'
covered with stagnant water and 'nics CROWN g
cattais WAS practical isnpossibiiity Besioes tns
petroleum would be only temporary r1iaAesihi1
DR.. Doty is a. ne~ method
From the sea at Midland Beach TO point back
of South Beach q strip OF swamp. oae h1la
half miles long by a half mile IN average Wlctp
This swamp IS flooded at high tile. is unlnhac,sed
unEauiyary and worse than useless. for It IL t1e
home of this variety of the famous Staten Island
nlnsJuito Back Of this swamp is To3T OF hlis'
with d few inhabited houses and many vacaI' oi'cs
The mosquito Is blamed for tina vacant ones
Through. the centre of this swamp runs a creek
The soil is porous down TO the stEatnIh ot non
rous clay. In the mud Of this sou the nio@9uit"
LAYS It's eggs, and the tides leave wa@F for Ihsi1
deyclopinr This water could not soak through.
for there is the pressure OF other water rom
benesth nitn sll this water dSaiusd OF IL Is piail
that the Isrvse perish Dr. Doty e1peFifeh'eo
and found that they would 90 60
Hence the c;y has appropriated *l'soW for nm
to start this draining wherever needed on fAe
island About thirty have staIfea cutfiiis
ditc!les leading into the creek and ti-eliGe III lu
It's sea 7o sss aFsa; It hnty n sssh Feet ess SIDE hsoe
the cuts are made about Ely ie nalgfsef. agao. ps:
ss1 sa4a Z ess Ia shs Is aia iaH out so os az
inch M Dr. po5y o sEEsos he ass no ses See spaw
grass over the tos, OF the Gitca makes no elIer &
nss e for 1t i si sa 5aai but the thSs It sos
the in1psry3ous clay. thea along the clay 70 ne h
SaTer r,,sns Trough tho dtches and the o,esk; s
ri1s Iarvse are left like dsh our Of water 'ha us
Iis wos& Is being started SO lats prtn:ApaH&y A & mar
Ss oser es5s 81 dsSF.s fs @sst a q a alsh She te
Es are In,ios paFsse,: ps5 ,s Snd CUT ih' ofh OF tram
ifT Tbs ne nsople arcut these marshes are taking
r9f interest Tss narihss In ths Taf sTs BEEN s1 he
grounds Of the eoh1nunsa Sor 70 hye parrni OF
ssnftary inspectors 10 sop this. In fen ne hSoEs 20
that men may for the lr5t tlIle Wa1a . Ts
X without rubber hoots. ms aioie H4eAAl' ' -
claiming Of much VaiCabi !atd ., .,,r ...
Over gea, HackeuSack. \. J., this draining tIs nIs
been successfully done ana farmer tssfs e, 'fa Ssa
Tr Doty that ( had increased the s-tius o. III
es.ate BY about sloooo and ,het he nov grows In If
crGrs Of hay Yh@re formerly he sefit N len VAIN
rubbey boots to s;lt patch herr and there s,,s
.sTf this dtchirlg," says DR. Doty, . can oe 9't.s
all aion the Atlantic sasnosTd as II is noxs @
do Ia. salt water mosquito will ee eRteFr.na.e,.
Tnis oiosquso cannot i've at $685. and hence u NOT
carried from port to port . sr,, m
yI,iis the ssit water rnosqitso rs nuisance, bo
ersnsttr aisease has vet been tod1stutsiiy LcS1
~ a.. btte as is the With the yhGoI6 fsNsi
nns,i,i.o or the niaia1ia inland typa tInieS pun
gensl- a., - -. 49,. calf -ye..r -a..
Dr Dew is conducting kouse TO houHs oanpaiEn
astst the gnalSrtal variety. This variety lays IL
eses In fresh wafer pools. rain haTrs!s open go,
or g.iste,-is old Gems psns Q: e'actels-ih ay
pIsra where water stagnates Its fapttal IL iocai'
Durine the winter c hibernates II houses -.
T1r T,oty has circulated four thousand In..passtts
telling how to wipe cut this pest Al csierns ana
wells are being closed, and 40 openings aii1%sa.
,inlass covered with wire netting Breeding places
sra heirg DESTROYED coated with petfoiopin
with srr3otllerg the by choking ny tne F.nI
riIes In the tails which they stick ~ to ths snf-
face TI, some sections of Htats1 Island pr. oos5
foura BIZ actual Questioning. that az least one II
mate Of every house had suffered malaria froih the
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