At noon on the winter solstice the Sun stands at 9 cubits and the longest day on the summer solstice is 16 hours at the baseline through Celtica. At 2500 stadia, approximately 283 miles, or 3.6°, north of Celtica, are a people Hipparchus called Celtic, but whom Strabo thought were the British, a discrepancy he might not have noted if he had known that the British were also Celtic. The location is Cornwall. The Sun stands at 6 cubits and the longest day is 17 hours. At 9100 stadia, approximately 1032 miles, north of Marseille, 5400 or 7.7° north of Celtica, the elevation is 4 cubits and the longest day is 18 hours. This location is in the vicinity of the Firth of Clyde.