Letters Of Jane Austen: Edited With An Introduction And Critical Remarks By Edward, Lord Brabourne (1884) · Edward Hugessen Knatchbull-Hugessen (1829–1893)
Volume 1
https://archive.org/details/lettersofjaneaus01aust/page/n5/mode/2up
https://babel.hathitrust.org/cgi/pt?id=mdp.39015013451128&view=2up&seq=8
https://babel.hathitrust.org/cgi/pt?id=hvd.32044012758868&view=2up&seq=8
Volume 2
https://archive.org/details/lettersofjaneaus02aust/page/n9/mode/2up
https://babel.hathitrust.org/cgi/pt?id=mdp.39015018617699&view=2up&seq=12
https://babel.hathitrust.org/cgi/pt?id=hvd.32044012758850&view=2up&seq=8
Fragment Of A Novel Written By Jane Austen, January-March 1817: Now First Printed From The Manuscript (1925) · Edited By Robert William Chapman (1881–1960)
"Sanditon" (1817) "Charlotte Heywood, a young woman from the country, encounters a sophisticated, if cynical, world in the rapidly developing resort town of Sanditon."https://books.google.de/books?id=fM26AAAAIAAJ
The Letters Of Jane Austen: Selected With An Introduction By R. Brimley Johnson (1925) · Reginald Brimley Johnson (1867–1932)
I suspect that this particular edition—since it comprises material from different sources and editions of Austen's letters—might contain some unrecorded material as well—neither to be found in both Knatchbull-Hugessen's edition (which comprises about two-thirds of her surviving letters) or Woolsey's (which contains about three quarters of the material found in the Knatchbull-Hugessen collection)—although I have not verified that. "The Letters of Jane Austen were first issued in 1884 by Lord Brabourne, and the present, also the first, selection is published with the kind permission of his son, Captain the Hon. Michael Knatchbull, M.C. These include those to Cassandra, to her nieces Fanny and Anna. The letters to Francis Austen fust appeared in Jane Austen's Sailor Brothers , by J. II. Hubback and Edith Hubback (John Lane), 1905. By the generous courtesy of Mr. R. A. Austen-Leigh, who has kindly looked over my proofs and corrected a few errors in the original Edition of the Letters , I have been allowed to include from Jane Austen : Her Life and Letters , by William and R. A. Austen-Leigh, 1913, the letters to Martha Lloyd, Charles Austen, and to Edward and Caroline Austen—younger children of James." (Preface)https://books.google.gr/books?id=j9D5Vx2dveIC
Plan Of A Novel According To Hints From Various Quarters, By Jane Austen; With Opinions On Mansfield Park And Emma, Collected And Transcribed By Her And Other Documents Printed From The Originals (1926) · Edited By Robert William Chapman (1881–1960)
The catalogued recording contains solely the 4 page work, omitting any further material which were published together within this particular publication—the first official published edition of that work. "Plan Of A Novel" (1815/1816) "ALLUSIONS to her novels occur not infrequently in Jane Austen's letters, and these are well known. It is less well known that she was at the pains to collect and write out the opinions expressed, by members of her circle, on Mansfield Park and on Emma, about the time of their publication. These are mentioned in the Memoir by J. E. Austen-Leigh, but with only scanty quotations. The Opinions of Emma are printed in full in the Life and Letters by the late W. Austen-Leigh and R. A. Austen-Leigh (1913; p. 328). But the Opinions of Mansfield Park have not been printed except in brief quotations. What Jane Austen thought it worth while to write, many people will wish to read. The satirical Plan of a Novel, according to hints from various quarters is printed in the Memoir (imperfectly and inaccurately) and in the Life and Letters (correctly). But a document so remarkable seems to deserve the honour of facsimile. In what way, or to what extent, it was inspired by the ‘critics' named in the margin, can only be guessed ; but there is every reason to suppose that the impulse to composition was given by the Rev. J. S. Clarke, librarian to the Prince Regent, who in 1815 (acting, or professing to act, on behalf of his Royal Master) invited Jane Austen to Carlton House and authorized her to dedicate any forthcoming novel to the Prince. A correspondence ensued, both sides of which have been preserved ; for Miss Austen was careful to keep copies of her letters. It will be seen that the character of the clergyman, in the Plan, is indeed 'according to hints' supplied by Mr. Clarke." (Preface)
https://books.google.gr/books?vid=IND:39000003091357&redir_esc=y