Show seaweeds made rocks by taking lime froni from water cincinnati seaweeds are responsible for the formation of many massive rocks in the older strata of north america the society was told at its meeting hero here by dr carroll lane fenton and mrs birs mildred ildred adams fenton many seaweeds even today are great gatherers of 0 limestone which they extract from sea water and deposit as shell like crusts about their bodies it is difficult to identify some of these seaweed deposited lime stones fenton said because they form a maximum of lime and leave leavea 3 minimum of plant traces nevertheless he and mrs fenton have been able to make out certain form species that appear to be alike in widely separated regions such as the grand canyon minnesota montana and pennsylvania |