Show Purified With Mud Ancient Greek priests purified sinners sin- sin sinners I ners by smearing them with mud Mud pressed together by tremendous tremendous dous pressure becomes slate which is used to roof buildings make black black- blackboards blackboards blackboards boards crayons and many many- other articles Certain wasps called daubers daub daub- daubers daubers ers use mud to build their nests Men have even made adobe houses of it The floor of the ocean is covered cov cov- covered covered ered with great mud deposits Most of these are blue blackish-blue but some are brown others red blue or green I Nature traps animals in mud which preserves their bones Scientists Scientists lists dig up the bones and read the secrets of the past I |