The Celina Democrat. (Celina, O. [Ohio]) 1895-1921, 1915-11-05

! ress there more than anywhere else
in the world. In one winter alone the
locust damage in South Africa was es-
timated at $5,000,000.
To cope with the insects the govern
ment has established a central bureau
for watching them. Flights can be
predicted and measures taken to min.
imize them.
In the latter half of 1912 locust
swarms did $lO,O0O,OOO damage in our
own island of Visaya, in the Philip
pines.
While the locust is prolific the cot
ton weevil beats him. Professor
Ealand estimates that one weevil lay
ing her 139 eggs by June 10 would
probably bring half that number-say
| 75-to maturity by June 29. There
are at least four generations in a sea
son, and the second generation would
number about 2,450; the third $3.50,
and the last and final generation l.
001 $50, or a total Of 3,0S9, 500 indi-
viduals as the progeny of a single pair
of weevils and their progeny in sea-
son. That is to say, one weevil for
every square foot of area in 75-acre
field. AS over so per cent are de-
stroyed by natural conditions, it is
doubtful if the actual increase in one
season from a single pair ever ex-
ceeds 100000 Alarming figures in
all conscience, exclaims the entomolO-
gist.
This is only one of vast number of
insects that man has to fight against
Next come the disease carriers.
First in deadliness is the mosquito,
which infests man with malaria, yell
low fever and filariasis. Many parts
Of the tropics and localities otherwise
most desirable are practically unin-
habitable to civilized man, owing to
the ravages of malaria
Malaria has been held responsible
for the wiping out of the ancient
Greeks
Not health alone, but mans very
pockets are affected by this overmas-
tering incubus. The mosquito plague
has been responsible for arresting the
development of the whole state of
New Jersey.
Malaria is a country rather than
town disease. 1t was once supposed
tc be caused by dwelling in damp
and marshy places, and even now the
belief dies hard in the minds of many
people, but it has been proved beyond
dispute that by the bite of infected
mosquitoes, and by that means alone,
can this dread disease be transmitted
from man to man.
Various estimates have been made
as to the number Of bacteria that may
be carried about the body Of single
healthy, active fly. One investigator,
TORY, puts the number at 28,OOO,OOO
in its intestine and 100000 on the
outer surface. Esten and Mason, by
careful experiment, found that the
number Of external bacteria varied
from $50 to over 6,500,OOO; other OBJ
servers have put the number as high
as 5OOOO0,00O per fly. The numbers
seem incredible. That one house fly
can carry about it's body as many as
500 100000 germs is almost beyond be-
lief. yet the estimated number is not
the result of guesswork, but of care
full experiment. Looking at the mat
ter from the most favorable point of
view, and supposing each fly to carry
only $50 bacteria from place to place,
the supposition, says Professor Ealand,
is not pleasant.
The dreadful infantile paralysis has
been discovered to be carried by the
stable fly.
Then there is the sleeping sickness,
which is carried by the tsetse fly.
Whole districts of Africa are absolute