The Physiological Society was formed, as you may remember, for the purpose of obtaining combined action among physiologists on the subject of Vivisection. The result in the first instance was to resolve on a tentative policy of silence, with the view of seeing whether the agitation would not burn itself out. It is now thought that this policy has been tried sufficiently long, and that we are losing ground by continuing it. After much deliberation, therefore, the society has resolved to speak out upon the subject, and the 'Nineteenth Century' has been involved as the medium of publication. Arrangements have been made with Knowles for a symposium-like series of short essays by all the leaders of biology and medicine in this country--each to write on a branch of the subject chosen by himself or allotted to him by the society. In this matter of organising the contributions, the society is to be represented by Dr. Pye Smith, who combines science, medicine, and literary culture better than any other member of our body. As secretary I am directed to write to all the men whose names are mentioned in a resolution passed by the society in accordance with the report of a committee appointed by the society to consider the subject. Hence these tears. Of course, your name in this matter is one of the most important, and as the idea is to get a body of great names, it would be a disappointment of no small magnitude if yours should fail. It does not matter so much that you should write a long dissertation, so long as you allow yourself to stand among this noble army of martyrs. Two or three pages of the 'Nineteenth Century' on one, say, of the following topics would be all that we should want:-- 'The limits and safeguards desirable in carrying on scientific experiments on animals.' 'Mistaken humanity of the agitation: real humanity of vivisection.' 'The Royal Commission and its report.' Or any other topic connected with Vivisection on which you may feel the spirit most to move you to write. Any further information that you may desire I shall be happy to give; but please remember how much your assistance is desired. This is a very delightful place, though not very conducive to work. If any of your sons are in Scotland and should care for a few days' sport with other scientific men on the spree, please tell them that they will find open house and welcome here. The proofs of my book on Animal Intelligence are coming in. I hope your work on Worms will be out in time for me to mention it and its main results. Ewart has pitched his zoological laboratory at Oban, so as to be as near this as possible. I shall go down when I can to keep his pot of sea-eggs upon the boil. I remain, very sincerely and most respectfully yours, GEO. J. ROMANES. Down, Beckenham, Kent: September 2, 1881.