Lice
The lice are hatched from nits, which we find clinging in rows, and
very tenaciously too, to the hairs. The insects themselves are more
difficult to find, but they are on puppies sometimes in thousands. To
destroy them I have tried several plans. Oil is very effectual, and
has safety to recommend it. Common sweet oil is as good a cure as any,
and you may add a little oil of anise and some sublimed sulphur, which
will increase the effect. Quassia water may be used to damp the coat.
The matted portions of a long-haired dog's coat must be cut off with
scissors, for there the lice often lurk. The oil dressing will not
kill the nits, so that vinegar must be used. After a few days the
dressing must be repeated, and so on three or four times. To do any
good, the whole of the dog's coat must be drenched in oil, and the dog
washed with good dog soap and warm water twelve hours afterwards.