1. Sulphate of copper 1 oz., nitric acid 1/2 oz., water 6 oz. - White.

2. Sulphate of copper 1 oz., sulphuric acid 12 drops, water 4 oz.

3. Sulphate of copper 2 drs., water 1 pint: for stimulating old ulcers. - Youatt.

4. Sulphate of copper 1 oz., water 1 oz.: to remove fungous granulations.

5. Nitrous acid 1 oz., quicksilver 1/2 oz.; dissolve, and add water 8 oz.