Effects of White Lead
Mr. Kohn-Alrest, director of the laboratory of toxicology of the city of Paris, recently addressed the Geneva Medical Society on "The Effects of White Lead on the Human Organism." The lecturer showed that pigments having a zinc basis, when properly crushed, are quite as advantageous as lead pigments. The amount of oil used for both zinc and lead is the same. Zinc soaps are quite as insoluble as those of lead; therefore the supposed superiority of white lead in resisting atmospheric conditions is inexact. The covering power of zinc is as good as that of lead, and it is only in damp and sulphurous atmospheres that lead holds better than zinc. Even this is not susceptible of absolute proof.In France, white lead has been discarded for the past twenty years, and in Holland and England experiments have been made without disclosing any disadvantages of zinc.