-The moBt primitive post oftïoc in tha world is to be found on the eoutbern extretnity o America. For somo yoars past a smal barrel bas been fastened bj an iron chuin to tho outennoet rocks of tbo mouutains over look'mg tho Straits ol Magellan, opposite Terra del Fuego. It is opened by every ship tbat passes through the Straits, eitlier to place letters in it or to take letters i'rom it. Tbe post, office, the'efore takes care of itself, it 'm confidcd to tho protection of seafarers, and there is no exaiupïe of any breach of this trust having ocourred. Each üliipundertakcs the voluntaiy transmissiou of the borrel, if their destination is withia tho liuiits of its voy age.