Leaden Cisterns (To Neutralize The Bad Effects Of). Sulphate of soda, or common Glauber's salt, is as good as anything that could be employed.

A few applications of this salt will be found sufficient; it will form with all the lead that may be contained in the water an insoluable precipitate, which, forming a crust on the surface of the cistern, will protect the latter from the further action of the water.