324 
G. A. JOHNSON. 
My attention has recently been called, by several articles 
in the Veterinary Journal , of London, to the use of the vari¬ 
ous preparations of aniline, as antiseptics and deodorizers. 
As vet I have seen no mention of their use in the affection 
«/ 
of open-joints, but from their action, as given in these sev¬ 
eral reports, I am led to view them favorably for use in this 
affection. 
Pyoktanin, the copyrighted name for methol violet, was 
introduced into the medical profession by Dr. J. Stilling, ol 
Strasburg, in April, 1890, and the June number of 1891 of the 
Veterinary Journal of London contains a report of Dr. Still¬ 
ing’s experiments with the various aniline preparations. 
Methyl violet is about three times as powerful as sublimate 
in its action on anthrax bacillus, and quite as effectual as sub¬ 
limate in its action on the staphylococcus pyogenes aureus. 
2d.—It is perfectly non-poisonous. 3d.—In consequence of 
this, it is immaterial how strong the solution may be, even up 
to the use of the pure substance itself. 4th.— It does not co¬ 
agulate egg albumen. 5th.—It possesses a wonderful power 
of diffusion, penetrating the eye like atropine. 
“ The following are the preparations of the dyes : 
“ 1st.—Pure methol violet, to be used as a powder for large 
wounds and ulcers. 
“ 2d.—Large pencils, for small wounds, burns, etc. For 
purulent cases the blue pencil is better than the yellow on ac¬ 
count of its greater antiseptic property. 
“ 3d.—Small pencils, for applications to the eye in cases of 
corneal ulcer, etc. 
“4th.—Powders, of 1 in 1000 strength in mild cases of con¬ 
junctivitis, and of 2 per cent, strength for the more severe 
cases. 
“ 5th.—Ointments, in strengths varying from 2 per cent, 
to 1 in ten. 
“6th.—Solutions, used in strengths of 1 in 100 to 1 per 
cent.; the 1 in 1000 solution may be used for ordinary cases 
of conjunctivitis, keratitis, etc., and in non-purulent cases the 
) r ellow dye auramin may be used on account of its cooling 
properties, The solutions should be filtered and kept in dark 
