ASEPSIS, ANTISEPSIS AND DISINFECTION. “41 
(i) THYMOL. 
RANKE introduced thymol for treatment of wounds, and 
its power for checking the development of bacteria was ascer- 
tained experimentally by SAMTER;; but for veterinary prac- 
tice thymol is too expensive. In canine practice it can be oc- 
casionally used as a 1 per-cent. aqueous solution if the ex- 
pense does not prohibit it. 
(m) CAMPHOR. 
In surgery camphor was used before the antiseptic era, es- 
pecially in bruises and gangrenous and ichorous wounds. Al- 
though camphor possesses good antiseptic properties it is not 
very suitable for treating wounds. However, in case of neces- 
sity, camphor, in the universal form of spirits of camphor is a 
good disinfectant. It is usually applied in the form of: 
(a) Camphor gruel (with but little alcohol) as a good dis- 
infectant in gangrenous wounds and bruises. 
(b) Spirits of camphor (1 :7 alcohol 1 :2 water) to rinse out 
wounds and to soak the bandage, in cases of necessity only. 
(n) TAR. 
Tar, that is, charcoal tar, has been in use for some time, 
but it has not been given the deserved importance as an anti- 
septic. On account of its containing carbolic acid, creosot, 
naphthalin and many other antiseptic aromatics, tar, es- 
pecially in cattle practice, is to me nearly indispensable, the 
action being in every regard satisfactory so that I can recom- 
mend the application of tar as an antiseptic especially in foot 
and hoof diseases, as the preparation is very cheap and can 
be obtained in every rope maker’s shop. I use: 
(a) Tar (clear) in claw diseases, if they are much spread 
amongst cattle and hogs, where it is not possible to put on 
daily a number of bandages; also, in order to make bandages 
moisture proof, to paint the bandage; and lastly, in all hoof 
and claw diseases which are forming scars. 
(b) Plaster of paris and tar (5-10 per cent.) and boric acid 
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