The second essay, which is a sketch of the career of the sculptor Tabachetti, was published as the first section of an article entitled "A Sculptor and a Shrine," of which the second section is here given under the title, "The Sanctuary of Montrigone." The section devoted to the sculptor represents all that Butler then knew about Tabachetti, but since it was written various documents have come to light, principally owing to the investigations of Cavaliere Francesco Negri, of Casale Monferrato, which negative some of Butler's most cherished conclusions. Had Butler lived he would either have rewritten his essay in accordance with Cavaliere Negri's discoveries, of which he fully recognised the value, or incorporated them into the revised edition of "Ex Voto," which he intended to publish. As it stands, the essay requires so much revision that I have decided to omit it altogether, and to postpone giving English readers a full account of Tabachetti's career until a second edition of "Ex Voto" is required. Meanwhile I have given a brief summary of the main facts of Tabachetti's life in a note (page 154) to the essay on "Art in the Valley of Saas." Any one who wishes for further details of the sculptor and his work will find them in Cavaliere Negri's pamphlet, "Il Santuario di Crea" (Alessandria, 1902). The three essays grouped together under the title of "The Deadlock in Darwinism" may be regarded as a postscript to Butler's four books on evolution, viz., "Life and Habit," "Evolution, Old and New," "Unconscious Memory" and "Luck or Cunning." An occasion for the publication of these essays seemed to be afforded by the appearance in 1889 of Mr. Alfred Russel Wallace's "Darwinism"; and although nearly fourteen years have elapsed since they were published in the _Universal Review_, I have no fear that they will be found to be out of date. How far, indeed, the problem embodied in the deadlock of which Butler speaks is from solution was conclusively shown by the correspondence which appeared in the _Times_ in May 1903, occasioned by some remarks made at University College by Lord Kelvin in moving a vote of thanks to Professor Henslow after his lecture on "Present Day Rationalism." Lord Kelvin's claim for a recognition of the fact that in organic nature scientific thought is compelled to accept the idea of some kind of directive power, and his statement that biologists are coming once more to a firm acceptance of a vital principle, drew from several distinguished men of science retorts heated enough to prove beyond a doubt that the gulf between the two main divisions of evolutionists is as wide to-day as it was when Butler wrote. It will be well, perhaps, for the benefit of readers who have not followed the history of the theory of evolution during its later developments, to state in a few words what these two main divisions are. All evolutionists agree that the differences between species are caused