Jerry full well understood my clanger, and I saw him wringing his hands in his anxiety; yet he saw that he could do nothing to help me.  I felt that I had been very foolish; and the poignancy of my regret was heightened when I remembered that I had placed myself in my present predicament without any necessity or an adequate object.  I had little time, I own, to indulge in such reflections, for all my thoughts and feelings were soon engrossed with the danger which immediately threatened me.  Jerry ran along the shore as I was carried by, in vain stretching out his arms as if he would help me.  Old Surley sat still, only now and then uttering a low whine, as if well aware of our peril, but feeling that he was unable to render me aid.  Now and then he looked into the water, as if he would like to swim ashore, which he might possibly have done; but then, perhaps, he remembered the shark he had seen, or he was unwilling to desert me.  I truly believe that it was the latter cause made him remain so quiet by my side.  I am certain, from the expression of his countenance and the turn of his head, that he was fully aware of our danger.