CHROMIC CATGUT.
1. Soak in ether 1 to 2 weeks, according to size.
2. Wind on glass spools.
3. Soak in chromic acid solution, 5 gr. to 1 pint water, 3 to 6 hours, according to size.
4. Dry in sun 3 days.
5. Boil in 95 per cent. alcohol 1 hour, under 15 pounds pressure, in autoclave.
Use Mason fruit jars.
Do not screw the top down when in sterilizer.