Frogmen Aid Geologists In Seabed Search -- Miss Pauline Ady, a young physiotherapist and a keen underwater fisher, is towed by the boat as she searches the seabed for a glimpse of the rock. She is wearing a special breathing tube. Frogmen of the London Sub Aqua Club are aiding geologists in the search for a 50 million year old rock. Led by Mr. Jim Phoenix, the party of divers has been exploring the seabed off Pagham, near Bognor, in the hope of making the important geological discovery. They are seeking the mother rock from which a pebble, now in South Kensington (London) Museum, is believed to have originated. August 17, 1954. (Photo by United Press Photo).