Jupiter River June 18 Thursday Same again. A fine bright morning to be ashore but there is no wind and we want to be at sea to go either east or west! Then for the breakers are rather strong in part of the river mouth, the wind up the river instead of out, and soon, the old old story of a sailing craft. A gasoline engine would be a very decided advantage to a sail boat when you want to go. But those people are too poor and too primitive for these things. By ten o'clock it is dark with slight rain. It rained then to 12 o'clock. At 1 P.M. Argus and I go over and at about 3 1/2 miles north of Jupiter River find thin bedded blue limestone with shells arounding a Steleopora, Philodictya, Gzyrospenia, Altypon, Refringens and a chunk Harrisia radiata like these (this is probably the Celypha enigmata of Richardson), ?This is the D 70 = D9 in a way this fauna appears