Besides these manuscript sources, I have drawn largely on Mr. Buxton Forman's elaborate edition of Keats's works in four volumes (1883),[2] and to a much less extent on the edition published by the poet's American grand nephew, Mr. Speed (1884)[3]. Even thus, the correspondence is still probably not quite complete. In some of the voluminous journal-letters there may still be gaps, where a sheet of the autograph has gone astray; and since the following pages have been in print, I have heard of the existence in private collections of one or two letters which I have not been able to include. But it is not a case in which absolute completeness is of much importance. In matters of the date and sequence of the letters, I have taken pains to be more exact than previous editors, especially in tracing the daily progress and different halting-places of the poet on his Scotch tour (which it takes some knowledge of the ground to do), and in dating the successive parts, written at intervals sometimes during two or three months, of the long journal-letters to America. On these particulars Keats himself is very vague, and his manuscript sometimes runs on without a break at points where the sense shows that he has dropped and taken it up again after a pause of days or weeks.[4] Again, I have in all cases given in full the verse and other quotations contained in the correspondence, where other editors have only indicated them by their first lines. It is indeed from these that the letters derive a great part of their character. Writing to his nearest relatives or most intimate friends, he is always quoting for their pleasure poems of his own now classical, then warm from his brain, sent forth uncertain whether to live or die, or snatches of doggrel nonsense as the humour of the moment takes him. The former, familiar as we may be with them, gain a new interest and freshness from the context: the latter are nothing apart from it, and to print them gravely, as has been done, among the Poetical Works, is to punish the levities of genius too hard.