170. You recollect Kingsley's expression,--now hackneyed, because admired for its precision,--the '_crawling foam_,' of waves advancing on sand. Tennyson has somewhere also used, with equal truth, the epithet 'climbing' of the spray of breakers against vertical rock. [1] In either instance, the sea action is literally 'rampant'; and the course of a great breaker, whether in its first proud likeness to a rearing horse, or in the humble and subdued gaining of the outmost verge of its foam on the sand, or the intermediate spiral whorl which gathers into a lustrous precision, like that of a polished shell, the grasping force of a giant, you have the most vivid sight and embodiment of literally rampant energy; which the Greeks expressed in their symbolic Poseidon, Scylla, and sea-horse, by the head and crest of the man, dog, or horse, with the body of the serpent; and of which you will find the slower image, in vegetation, rendered both by the spiral tendrils of grasping or climbing plants, and the perennial gaining of the foam or the lichen upon barren shores of stone. [Footnote: Perhaps I am thinking of Lowell, not Tennyson; I have not time to look.] 171. If you will look to the thirtieth chapter of vol. i. in the new edition of the "Stones of Venice," which, by the gift of its publishers, I am enabled to lay on your table to be placed in your library, you will find one of my first and most eager statements of the necessity of inequality or change in form, made against the common misunderstanding of Greek symmetry, and illustrated by a woodcut of the spiral ornament on the treasury of Atreus at Mycenae. All that is said in that chapter respecting nature and the ideal, I now beg most earnestly to recommend and ratify to you; but although, even at that time, I knew more of Greek art than my antagonists, my broken reading has given me no conception of the range of its symbolic power, nor of the function of that more or less formal spiral line, as expressive, not only of the waves of the sea, but of the zones of the whirlpool, the return of the tempest, and the involution of the labyrinth. And although my readers say that I wrote then better than I write now, I cannot refer you to the passage without asking you to pardon in it what I now hold to be the petulance and vulgarity of expression, disgracing the importance of the truth it contains. A little while ago, without displeasure, you permitted me to delay you by the account of a dispute on a matter of taste between my father and me, in which he was quietly and unavailingly right. It seems to me scarcely a day, since, with boyish conceit, I resisted his wise entreaties that I would re-word this clause; and especially take out of it the description of a sea-wave as "laying a great white tablecloth of foam" all the way to the shore. Now, after an interval of twenty years, I refer you to the passage, repentant and humble as far as regards its