As soon as I find a little more leisure, I shall not fail to reply fully to both your articles. At present I only write to you to defend myself against an undeserved charge brought against me by Professor Romanes. I had said that Professor Romanes had no right to speak of men like Noiré, Huxley, Herbert Spencer, to say nothing of Hobbes, with an air of superiority. Professor Romanes replies that he never mentioned Mr. Herbert Spencer at all, that it would have been well for me, if, before condemning his supposed treatment of Herbert Spencer, Huxley, and Noiré, I had looked at his Index. This is a serious charge. It would show a want of accuracy unpardonable in a scholar. It is true, Mr. Herbert Spencer’s name does not occur in the Index. But on p. 230 we read: “So here again we meet with additional proof, were any required, of the folly of regarding the copula as an essential ingredient of a proposition.” Now it is well known that it is Mr. Herbert Spencer who regards the copula as an essential ingredient of a proposition. I have shown that the facts of language are against Mr. Herbert Spencer, but I should not therefore think it right to charge him with folly. This will show that if I wrote without Index, I did not write without book. Yours truly, F. MAX MÜLLER. Oxford, Oct. 28, 1891. BOOK REVIEWS. SYNOPTIKER. APOSTELGESCHICHTE. Bearbeitet von Professor _H. J. Holzmann_. Zweite verbesserte und vermehrte Auflage. Freiburg, i. B.: Akademische Verlagsbuchhandlung von J. C. B. Mohr. 1892. This book is the first volume of the “Hand-Commentar zum Neuen Testament” edited by the Professors H. Holtzmann, R. A. Lipsius, P. W. Schmiedel, and H. v. Soden.