ersal Review_, have been omitted.

The first of these, entitled "L'Affaire Holbein-Rippel," relates to a
drawing of Holbein's "Danse des Paysans," in the Basle Museum, which is
usually described as a copy, but which Butler believed to be the work of
Holbein himself. This essay requires to be illustrated in so elaborate a
manner that it was impossible to include it in a book of this size.

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fear that they will be found to be out of date.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