The daily chieftain. [volume] (Vinita, Ind. Ter. [Okla.]) 1898-1902, 1899-02-17
WORK OF PARASITES.
snake-LilSc Organisms That Circ"-
late Through the Arterini
System mt Night.

ain order TO follow the story OF DIS
eases in which parasites occur, let us
take the bloodworm. In the lympha,ic
vessels of the human body there may be
present hair-like worm about three
inches in length 1t pours out young
and these contrive to find access to the
blood. They are microscopic, actively
moving snake-like organisms. They
circulate with the blood during the
night, but during the day they disap-
pear from the general circulation. ana
lie up in the lungs. Now, the mosquito
nm animal of nocturnal habits, attacks
man at the time when the young para
sites are circulating in the blood
ut might all be the plot of story
Af tragedy"
AT night the mosquito bites.and with
the blood swallows one or more OF those
parasites The organism being once in
The mosquitoes body, undergoes re-
markable development, increasing IN
size and acquiring organs of digestion.
The mosquito in the ordinary course Of
nature lays her eggs about the seventh
en- the surface of water, and then she
dies ard falls into the water. The para
site thereupon escapes from The mos
quito into the water and should that
water be drunk by person the para
site is acquired. l have been speaking
of the germ of elephantiasis, but a
similar thread of history applies TO
most parasites and 10 many other dis
eases"
Does the man who takes the para
site with the water necessarily devel9p
disease?"
"Oh, no; that all depends on cir
cumstances. 1t will depend on the
general condition of his health, on the
part of the body in which the organism
locates-on a score of things. You see
that The mosquito prepares the parasite
10 do its deadly work, and then places
1t where it can do it. The mosquito
lakes the thing, makes it robust. and
then spreads it where it can find
ready passage into the human body.
The whole scheme is like wheel, re-
volying and revolving, once it has OBJ
tained motion"
That is the process of action of
parasite making a prey Of man."
at is a sample. In the case of ma
laria the process is probably much more
involved ! mean that the journey be-
tween the parasite and its very first
form. and the development Of human
disease as result, may be much longer
My friend Surgeon Major Ross has re-
Gently carried out some interesting and
valuable experiments in India. He got
mosquitoes that had fed on sparrows in
fected with the organisms of which
have spoken. He kept the insects Tor
five or six days. until he knew the or
ganisms had developed He then let
them loose again on sparrows in the
blood OF which, as established by exam
ination. there were 10 organisms. On
this lot of sparrows being tested later
it was found that they now had re-
ceived the organisms from the mosqu-
toes"
"You think distinctly that malaria
may be acquired by the bite Of mos
guto?"
Yes; but whether that is the only
way l cannot venture TO assert. Per-
haps not. for malaria multiplies indeh-
nitely outside the human body. quite
OF man. That we know.
md. in fact, malaria is most prevalent
IN places where man is not. Such a state
IF multiplication must demand some
hing more than a short cycle of from
man 10 mosquito and from mosquito TO
man. Possibly an infection of mosquito
BY mosquito is necessary, as in tick dis
.ase or in sikworm disease. What we
want is a complete story of the various
species of mosquito in malarial and
'ther lands, and OF their behavior in
-egard TO the different varieties OF ma
arial parasites. London Chronicle.
Salt Water Fire Protection.