It may be true that Professor Sanderson at present holds no certificate, nor does Dr. Michael Foster, who occupies a similar position at Cambridge, but Dr. Michael Foster has "assistants" who hold from time to time certificates, and quite lately, "under his guidance," a lady, Miss Emily Nunn, has been poisoning frogs till their skin comes off. There is nothing to prevent Professor Sanderson from employing assistants. The mind may be the mind of Professor Sanderson, but the knife may be the knife of such a man as Dr. Klein, who was his former assistant at the Brown Institution, and who has publicly declared that "he has no regard at all for the sufferings of the animals." Your obedient servant, STEPHEN COLERIDGE. 12 OVINGTON GARDENS, LONDON, _March_ 13_th_, 1885. On the publication of this letter the Dean of Christ Church of that day, Dean Liddell, wrote to me a long rambling letter which I could not then, and cannot now, publish because it concludes with these words:-- I have written this not for publication. I will not engage in newspaper controversy. I write to you, out of respect for the name you bear,--not in anger but in sorrow. To this I replied: To my letter in the Press you have no word to offer. In it I quote verbatim Professor Sanderson's own description of one of the many wanton torments that he has inflicted upon the good creatures of God. I ask how medicine is advanced by the agonies of the dogs he has slowly suffocated, and I get no answer (though I have sent the letter to him and some twenty other vivisectors) but this expression from you of sorrow that the name I bear should be ranged on the side of this man's opponents. Sir, I am a young man, unskilled in polemics and unpractised in the art of advocacy, no match for one of mature age, ripe experience, and stored learning; but if an enthusiasm for mercy, a belief that human life itself is not fitly bought by the torturing of the helpless, an amazement that any Christian, nay that any man should call one of these tormentors "friend," be sentiments the holding of which by one of my name fills you with sorrow if not with anger, it without doubt is plain that our name is but a name to you, and that your respect for it should have been withdrawn when it first came into prominence. I do not believe you know what things these men have done; it is a terrible task for any man to read their literature; if you had done so I do indeed believe that not your sorrow only but your anger would be deeply roused, but--not against me.