I enclose a letter received by same post that brought yours. It is from a former keeper of mine who is now more in the moorlands. Other applications are out, so I hope some of them will be successful. Very little doubt it will prove to be temperature. I found a dead stoat here to-day; it had not turned white at all, but then the season is very mild. The Secretary of the R.I. is Sir F. Bramwell, Bart., F.R.S. You had better write to him. Also to his son-in-law, Victor Horsley, who is more of a biologist. Tell Bramwell, if you like, that I think he ought to jump at you. Yours very truly, G. J. ROMANES. Geanies, Ross-shire, N.B.: November 6, 1889. My dear Poulton,--Many thanks for your paper, which is the clearest exposition I have yet seen of Weismann's views. But how about your allusion to experiments in grafting? As regards plants, there _is_ a good deal of evidence as to the possibility of a graft-hybrid. As regards animals, fifteen years ago I spent an immensity of time in experimenting, and could not then find that there was any literature on the subject. Nobody who had grafted animal tissues had done so with any reference to the heredity question, nor do I know of any publications on the subject since then. Yours very truly, G. J. ROMANES. Geanies, Ross-shire, N.B.: November 11, 1889. My dear Poulton,--Although I spent more time and trouble than I like to acknowledge (even to myself) in trying to prove Pangenesis between '73 and '80, I never obtained any positive results, and did not care to publish negative. Therefore there are no papers of mine on the subject, although I may fairly believe that no other human being has tried so many experiments upon it. No doubt you will think that I ought to regard this fact as so much negative evidence in favour of the new theory; and, up to a certain point, I do, only the issue between Pangenesis and Germ-plasm is not really or nearly so well defined as Weismann represents, where the matter of experiments is concerned; _e.g._ it is not the case that any crucial test is furnished by the non-transmissibility of mutilations; Darwin did not set much store by them, though Eimer and others have done so since. In fact all the Germans on both sides, and all the Englishmen on Weismann's side, seem to me unjust to Darwin in this respect.