Aug. 2 - 1918. Luntai's notes, Stearing Island. "The width of the island across the strike is 100 yards which at a dip of 20 degrees gives 100 feet of beds clearly exposed. In addition there is a lower rock reef formed by coral. 200 yards further north-west, parallel to the island, it can be seen to dip in the same direction, and this would indicate an additional 200 feet of strata. The width of the straight between Stearing Island and Cow Head measured across the strike is 1600 feet which at 20° dip would include 1600 ft of strata. The greater width across the head at right angles to the strike is 3000 feet and here the dip is about 30° making the thickness around 1500 feet. This makes a total thickness of 3300 feet of heavy coral limestone between the outer reef of Stearing Island and the inner side of Cow Head." [This is by no means all of the Cow Head conglomerate for all of the strata seen at the Harrows on August 1 - page 97 and at least 1500 feet thick are to be added. Further off the inner bay there is once Cow Head formation found at distance or that even more is like added. As the core now stands we see that the Cow Head formation has a maximum thickness of at least 5000 feet and in probably some places. When the basal angle, which are all present the Cow Head once if course be further thick and may not exceed 2000 feet.] "At 6 P.M. we rounded the corner and went to the White Rock Isles for a little while. The reef is formed in narrow stringy islands running north-westward from Cow Head to the point north of Hallow Bay (Cow Horn). The reef has a length of one mile. This comprised