REMEDIES—PREVENTIVE TREATMENT. 283 
may be dipped in a tub or barrel. There is a patented dipping device 
| for lowering animals into a tank. 
Wherever dipping is to be practiced to any great extent the con- ; 
| struction of a permanent tank or vat for the purpose will be a matter 
| of economy.’ 
| 
i> 
The following description of the method of constructing a dipping 
vat is from an article in the Texas Farm and Ranch, by Dr. M. Francis, 
of the Texas Agricultural and Mechanical College. It is so clear in 
explanation that anyone should be able to construct a vat fitted for the 
purpose. If the vat is intended for dipping sheep or small animals P 
only it may be made smaller, but it would evidently be in proportion, 
and if it is intended to keep the vat constantly filled ready for use it 
might be preferable to have one for horses and cattle and a smaller 
sized one, with the proper dipping solution, for sheep, hogs, dogs, ete. 
It is thought, however, that by the use of a false bottom, so as to pre- 
' vent any possibility of the smaller animals failing to get out of the 
| larger vat, that all animals could be treated in one of large enough . 
size to accommodate the largest animals. 
i Fia, 169,—Section of dipping vat. 
Dr. Francis’s description was in the form of a reply to Mr. James M, 
Niall, Rockhampton, Queensland, Australia: | 
Mr. JAMEs M. NIALL, 
Rockhampton, Queensland, Australia. 
DEAR Sir: Yours of December 24 is before me. Ticks have become such a curse 
in this country that we have been compelled to devise some means for their destruc- 
tion. After various unsuccessful attempts in this direction, we have adopted the 
dipping process with very gratifying results. 
We use a large vat of 5,000 gallons capacity and force the cattle to swim through 
it. Without further remarks, I will now describe the arrangement and its operation. 
(See fig. 169.) 
Many of the patented or registered dips are valuable and, if the user does not 
object to paying a higher price for the ingredients used, may be utilized. 
