Evening bulletin. [volume] (Honolulu [Oahu, Hawaii]) 1895-1912, 1898-02-12

TEXAS CATTLE TICK ENLARGED.
owners of the great stockyards at Fort
Worth. The method adopted is to swim
the cattle through large tank contain
ing mixture which it is hoped will de.
stroy the ticks on them The St Louis
Post-Dispatch gives an account of tie
experiments, with vivid picture of Il
horrible tick and diagram of the di
ping apparatus
The Post-Dispatch says: Thesr expc.
iments are made by dipping the "att
infested with ticks into carbolic pro-
aration, "chloro- o-naphtholeum, mai
factured by New York company I
properly make these interesting te.
required the building If special +.
and shoots and large vat to coutu
the chemical for ,;i' ping
There are a nuI IGr of these now y,
and vats all located in the uuaranl,.
divisit . Of the yards From the pens
wide shoot leads to smaller pen ne
the head Of the dipping vat, just lr.a
enough to contain about 100 cattl,
This pen convergGs to a narrow sha,
about 20 feet long that leads !T, G. y,
into the vat The vat proper is 26 fart
long and 10 feet deep. 1t is of cors d
erable width at the top, but nGrrowS {
about 2 feet at tho Euttom. Il Is bui, ,.
of cypress and is airtighC and lies most
ly beneath the surface of the ground
only few feet of the walls projecting
above When ready for use, the vat con
tains about O feet Of fluid.
The actual work CT dipping the cattl"
is interesting The cattle used wCrJ
brought from north Of the present quar-.
antine line and from counties recently
quarantined. The cattle were unloaGo@l
direct from the cars into the pens used
for the boarding of southern cattle
They were then driven by way of n
shoot into the pen at the head of the
vat. From this they were driven through
the narrow shoot, one at a time, ON TO
a metal covered trapdoor that lies hori.
zontally with one end projecting over
the vat. This door is fixed on horizon.
tai pivot, and when the animal reached
the far end his weight would bear it
down and before he would know it he
would plunge head first into the chem.
ical bath below.
The animal is completely submerged
by the fall into the six feet of fluid and
upon rising cannot escape from the in.
voluntary bath without swimming over
20 feet to the other end of the vat, where
the ascent is an inclined plane provided
with footholds. At the top the steer is
allowed to stand for awhile and drip,
when the gate is opened and he is al.
lowed to go with his fellows into pens
prepared for their reception. These pens
are numbered, and the cattle in each are
carefully examined at certain intervals
after being dipped and notes taken
They are driven back to the vat and re
dipped if found necessary
So far it does not appear that the ex.
periments have proved q decided sue.
cess, the end i'll view having been only
partially attained. A large number of
the ticks on the cattle experimental
upon have, however, been killed and
the rest arc more or less affected
Experiments are now being continued.
with the addition of West Virginia
black oil, which, it is promised, will
destroy all the ticks,
In addition to making the expert
ments relating to Texas fever DR. Nor
gard will from time to time while in
Fort Worth give examples of the proc,
ess employed in inoculating cattle to
prevent blacl:leg, This disease has been
the cause of great mortality among
cattle in widely separated districts OF