42 ANTISEPTIC TREATMENT OF WOUNDS. 
and tar (2-5 per cent.) are well recommended, but are not in- 
dispensable. 
(c) Tar with ferrum sulphas aa if we intend to dry up 
strongly secreting hoof and claw wounds. 
(0) TURPENTINE. 
AMBROSIUS PARE (1550) knew the antiseptic properties 
of turpentine which make it, as well as tar, suitable for the 
treatment of hoof and claw wounds, especially in easily bleed- 
ing wounds. The only unpleasant effect was the irritation it 
produced on granulations, causing pain. It has the disadvan- 
tage of producing pain by irritating the surface to which it is 
applied. 
(p) OIL OF TURPENTINE, 
The antiseptic properties of the oil of turpentine have been 
experimentally ascertained by GRAWITZ and DE BARY 
and confirmed also by KOCH. Later investigators claim to 
have had negative results, but it has yet to be proven that the 
statement backed up by KOCH, GRAWITZ, and DE BARY 
that the preparation in a proportion of 1-75,000 does not act 
antiseptically is a mistake. Notwithstanding its antiseptic 
properties, oil of turpentine is only used in cases of necessity 
on account of the irritation it causes. 
(q) SUGAR. 
As an old public remedy against strongly granulating 
wounds, sugar in the shape of powder has long been in use, 
but in surgery it was first introduced by LUCKE as an anti- 
septic. Sugar acts antiseptically on the wound by excellently 
drying it up and by its forming concentrated sugar solutions 
(just as in canning fruits), which prevent the settling of mi- 
crobes. Frequently a dry scab forms on wounds treated with 
sugar, under which an antiseptic healing takes place. As 
sugar can be found in nearly every household and its cost is 
not great, I can, according to the experience which I have 
had with it, recommend it. It is best applied in the form of: 
Powdered sugar (clear or mixed with 5 per cent. powdered 
