To remove the zinc, just melt the solder in a pot, then take it off the fire and stir in a good handful of powdered sulphur or brimstone until the whole is of the consistency of wet sand. Replace the pot on the lire and melt, but do not stir the contents. The sulphur and zinc will rise to the surface and form into a cake. Now take the pot oft" the fire and carefully remove the cake without breaking if possible. This can be done with two pieces of hoop iron with bent ends.