"to near the surface In the evening walked along the beach at low tide in front of the Royal Palm grounds and was surprised to see myriads of dead shells of omay and oyster. Evidently there is more life in Biscayne Bay than is ordinarily assumed. There are one or many of these as to make a thick band of erguina in a calcareous mud. The quarries along the F. E. C. Railway and the cuts faced of Miami all show more of less distinct, a solution channels. Most of these are less than two foot deep but occasionally we see one penetrating below the ground. Evidently considerable water percolates down through the Miami oolite.