The Savannah morning news., 1900-12-17

Prof. O. b. Grassi, Of the University
OF Rome. last summer conducted extern
Give experiments in the origin aud pre-
ventlon OF malaria lie chose as the
/ site Of his work one OF the most ma,ari-
Gus sections OF the Italian peninsula.
I place where practically every person suf-
Tered from malaria. ana Few persons re-
tained their normal health during tho
ave "slckly' months % the year. DR.
GIaseI gathered about him colony %
100 persons whom he protected thorough
iy day ami night. from the attacks OF
mosquitoes. OF this number only five
showed symptoms o. the fever during the
months OF the experiments. and these.
the doctor says Ia paper in the Inde-
pendent relating the results OF his work.
had carried malarial germs IA their sys-
ten over from the previous year. Mean
while many persons who lived near his
experiment station and were unprotected
| from mosquitoes suffered from malarial
fever hardly one OF them escaplgg the
malaey. These results. he thlnlH should
give weight 10 his claim OF having gone
long way toward the solution OF the
u.alarial fever problem.
Or. Grassi asserts, IN contradiction OF
the Old theories. that the malarial germ
Is never found free in the air. or In wafer
or IN the earth. that q exists only IN
tho human blood and IN the body OF the
/ mosquitoes special mosquito. the An
/ opheies. This venomous insect e. che
means by which the disease Is
/ both propsgated and distributed at IA.
been seen" says Dr. Grassi. that the
parasites IN The blood OF men devclop-I
aud reproduced, but tkere was also
noticed the formation or special l.od,e .
which seemed sterile and tho significance
Of which was unknown These bodies
are now seen 10 be the male ana female
or tho parasites. which. while they res,
IN the human blood do not come ia con-
tact. but when taken into the stomach
OF the Anopheles unite and give birth
GO tiny new body. which settles itself
upon the lining Of the stomach OF the
mosquito. and there develops. while an
enormous quantity Of innnitesimal lie
grows In their bodies. which take the
name OF sporoids. The parasite grow
10 greatly that &, Is visible under a
simple lens. ana in the end bursts. and
the sporoids set free IN the body OF tho
mosquito are all gathered ln the saliva
glands The mosquito. biting. lnjccts a
ht,le saliva ana with Il the sporoids. and
20 man takes malaria"
Warmth Is necessary to the develop
ment Of the parasites IN the mosquito
The insect contains no heat OF its own
hence q is chat II is only during the
warm months that malaria Is contracted
In all maiarious sections early morning
ana early evening are regarded as thg
most unhealthfui times Of day. This
Dr. Grassi says, Is because the mos.
quito by preference bites az those times
between the hours OF darkness and light
and seldom "a the direct rays OF ID,
sun. Upper stories OF houses are aiwayi
found more heaithful as sleeping room,
than lower floors. In malarlous sections
The reason IL that che mosquito seldom
nles high though few houses outsld,
of the great cities are OF too great alti
tude for the insect
Since Il Is practically impossible Il
extermlpate the mosquito. DR.. Gmss
says the thing to be done Is to pro,ec
ones self agalns. the bite OF the insect
BY the use Of wire screens over ths
doors. windows. chimneys and all othei
openings to his houses he and his 10
assistants we're able 10 pass IA
summer in robust health. while whol,
families living few yards away wcr'
/ stricken with che fever. Dr. Grassri
people even slept IA the open air a