bottom of the bay was constantly being shifted and bars being made and removable. Perhaps at no time was the [illegible] more than 20 fts. under water while the outer cups extended from sea level to low depths. The "raised" coral reef wall is then the equivalent of the [illegible] white and represents a time when the sea stood at least as far higher than it does now. This may have been just previous to the glacial period, and during the glacial period Florida came more and more out of the waters as the sea waters came to be more and more deposited as snow in the polar regions. When all of the snow caps are melted [illegible] again be under the sea. This any later crime is then very different from Agassiz's. Agassiz says that the [illegible] white is a wind blown deposit and not created with the fossils left there afterwards.