P.S.--A Russian who is translating my new book into Russian has been here, and says you are immensely read in Russia, and many editions--how many I forget. Six editions of Buckle and four editions of the 'Origin.' CHARLES DARWIN TO ASA GRAY. Down, October 16 [1867]. My dear Gray, I send by this post clean sheets of Volume I. up to page 336, and there are only 411 pages in this volume. I am VERY glad to hear that you are going to review my book; but if the "Nation" (The book was reviewed by Dr. Gray in the "Nation", March 19, 1868.) is a newspaper I wish it were at the bottom of the sea, for I fear that you will thus be stopped reviewing me in a scientific journal. The first volume is all details, and you will not be able to read it; and you must remember that the chapters on plants are written for naturalists who are not botanists. The last chapter in Volume I. is, however, I think, a curious compilation of facts; it is on bu-variation. In Volume II. some of the chapters are more interesting; and I shall be very curious to hear your verdict on the chapter on close inte-breeding. The chapter on what I call Pangenesis will be called a mad dream, and I shall be pretty well satisfied if you think it a dream worth publishing; but at the bottom of my own mind I think it contains a great truth. I finish my book with a semi-theological paragraph, in which I quote and differ from you; what you will think of it, I know not... CHARLES DARWIN TO J.D. HOOKER. Down, November 17 [1867]. My dear Hooker,