Solution A

Copper sulphate... 125 grams

Potassium chlorate. 125 grains

Water............ 1,000 cu. cm.

Boil until all is dissolved.

Solution B

Aniline hydrochloride........ 150 grams

Water............ 1,000 cu. cm.

Apply Solution A twice by means of a brush, allowing time to dry after each coat; next, put on Solution B and let dry again. On the day following, rub on a little oil with a cloth and repeat this once a month.