37 
Try and wet it uniformly all over with plain water 
and you will not succeed. The water runs into globules 
or spreads in patches over the surface, showing no inclin- 
ation to cling to it, or to form a continuous adherent 
film. Give it a brisk shake and the water will fa'l off, 
leaving very little behind. à : 
Strip left unwetted for purposes of comparison. 
Greasy Book Cover, partly wetted with Cooper’s Cattle Dip. 
Note the uniform adhesive film—no running together 
into drops and patches. 
Then dry the surface thoroughly and apply a few . 
drops of Cooper's Cattle Dip solution, diluted to 
using strength, and at once you will see that it wets and 
coats the greasy surface uniformly. 
The above illustration shows how Cooper's Cattle 
Dip behaves when applied to the skin of an animal 
in the dipping bath, and this is the secret of its 
success as a Tick-killer. Its t wetting power" is 
perfect. It leaves a uniform film of liquid adhering 
to every portion of the skin, and enters every angle 
and crevice, thus leaving no loopholes for the Ticks to, 
escape a drenching, or for the skin to escape wetting. 
