The bones were covered five or six feet with the water every full sea, and were about nine or ten yards from the cliff, which is nearly perpendicular, and about sixty yards high, and is continually wearing away, by the washing of the sea against it; and, if I may judge by what has happened in my own memory, it must have extended beyond these bones less than a century ago. There are several regular strata or layers of stone, of some yards thickness, that run along the cliff, nearly parallel to the horizon and to one another. I mention this to obviate an objection, that this animal may have been upon the surface, and in a series of years may have sunk down to where it lay; which will now appear impossible, at least when the stones, _&c._ have had their present consistence. [Illustration: _Philos. Trans. Vol. L._ TAB. XXII(b) _p. 689_. _J. Mynde sc._] _References to the Draught._ _A_, _B_, _C_, the head and bill, not in the same line or range with the rest of the bones. _a_, _b_, A bone, with its processes, which I take to be similar to that, which includes the brain in fishes. The part between the bone and outlines appeared to be a smooth membrane; but was so thin, that in taking up it broke. It is evident this is the upper part of the head inverted. _B_, _C_, the superior _maxilla_ intire, and in some places covered with the inferior one for four or five inches together. Where this happens, the vacuity is filled with matter like the rock in which it lays; and there are large teeth in each jaw, at such distances, and so posited, that those in one jaw fill up the vacuities in the other, and appear like one continued row, the mouth being shut. Where there is only the superior _maxilla_ remaining, there are no teeth; but the sockets are visible and deep, and at the same distances from each other as the teeth in the other part of the jaw. The tip or extremity of the bill was intire for four or five inches, having both _maxillæ_, with their teeth, and towards the point large fangs. Part of the bill and head were covered with the rock; which was removed before they appeared as in the figure. _A_, _D_, _F_, _G_, cavities in the rock, about two inches deep, where, I suppose, the wanting _vertebræ_ have laid, as they are exactly suited to have received them. _D_, _F_, Ten _vertebræ_, from three to four half inches in diameter, and about three inches long, some of them separated in taking up. They were about two inches in the rock.