Warns against Mercury Poisoning from Amalgam Tooth Fillings. Poisoning from mercury used in amalgam tooth fillings has become a serious menace, according to Dr. Alfred Stock, professor in the Technical High School a t Karlsruhe. Dr. Stock has conducted investigations and finds that a large percentage of the mercury from these fillings is absorbed by the system. The worst offenders are the mercury-copper amalgams. Unfortunately, people have become careless about the dangers of mercury poisoning, and in many walks of life this constitutes a severe menace to health and life itself. Dr. Stock urges a return to the earlier caution observed in the handling of this toxic substance, and suggests that science should be able to find a substitute for mercury in amalgam fillings.-Science Service