When Mr. B*rtr*nd R*ss*ll, following the advice of Mr. W*ll**m J*m*s, again "got into touch with reality" and in July 1911 was torn to pieces by Anti-Suffragists, many of whom were political opponents of Mr. R*ss*ll and held strong views on the Necessity of Protection of Trade and person, a manuscript which was almost ready for the press was fortunately saved from the flames on the occasion when a body of eager champions of the Sacredness of Personal Property burnt the late Mr. R*ss*ll's house. This manuscript, together with some further fragments found in the late Mr. R*ss*ll's own interleaved copy of his _Prayer-Book of Free Man's Worship_, which was fortunately rescued with a few of the great author's other belongings, was first given to the world in the _Monist_ for October 1911 and January 1916, and has here been arranged and completed by some other hitherto undecipherable manuscripts. The title of the above-mentioned _Prayer-Book_, it may perhaps be mentioned, was apparently suggested to Mr. R*ss*ll by that of the Essay on "The Free Man's Worship" in the _Philosophical Essays_ (London, 1910, pp. 59-70[1]) of Mr. R*ss*ll's distinguished contemporary, Mr. Bertrand Russell, from whom much of Mr. R*ss*ll's philosophy was derived. And, indeed, the influence of Mr. Russell extended even beyond philosophical views to arrangement and literary style. The method of arrangement of the present work seems to have been borrowed from Mr. Russell's _Philosophy of Leibniz_ of 1900; in the selection of subjects dealt with, Mr. R*ss*ll seems to have been guided by Mr. Russell's _Principles of Mathematics_ of 1903; while Mr. R*ss*ll's literary style fortunately reminds us more of Mr. Russell's later clear and charming subtleties than his earlier brilliant and no less subtle obscurities. But, on the other hand, some important points of Mr. Russell's doctrine, which first appeared in books published after Mr. R*ss*ll's death, were anticipated in Mr. R*ss*ll's notes, and these anticipations, so interesting for future historians of philosophy, have been provided by the editor with references to the later works of Mr. Russell. All editorial notes are enclosed in square brackets, to indicate that they were not written by the late Mr. R*ss*ll.