On the Geology of the Calf of Man

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Abstract
The Calf of Man is an islet of about 800 acres in superficial extent, situated at the south-western extremity of the Isle of Man, and separated from it by a narrow channel, in breadth not more than 500 yards, called “the Race” or “Sound” of the Calf. Nearly in the centre of this channel, but rather towards its northern side, lies the small rocky islet of Kitterland, between which and the Isle of Man the channel is fordable at low water, and between it and the Calf islet the passage is rendered dangerous by several sunken rocks, the tide rushing through the channel at certain periods of ebb and flow at the rate of nine miles per hour. Geologically, the islet of the Calf must be considered simply as a prolongation of the Mull hills, separated from them by a chasm at right angles to the general axis of elevation, and which corresponds, in fact, with the larger chasms, which, when the sea was at a higher relative level, formed channels at Port Erin, Fleshwick and Peel. It rises gradually from the south-western extremity, the northern and south-eastern side presenting to the sea precipices to the height of 470 feet, the highest point being at the pile near the ruins of Bushel's house. Off the western point is the dangerous reef of the Hen and Chickens, the two revolving lights on the Calf, when brought in line, bearing upon them. The Stack is a singular pile of rocks near the

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