Extradition. Supplementary extradition treaty, adding infractions of laws concerning poisonous substances to offenses covered in extradition treaty of Jan. 6, 1909, supplementary extradition treaty between United States and France, signed Paris, Jan. 15, 1929, adding infractions of laws concerning poisonous substances to list of crimes and offenses on account of which extradition may be granted under convention concluded between United States and France, Jan. 6, 1909.