Siemens, Dr. C. W., D. C. L., F. R. S. Smith, Mr. G. Barnett Taine, M. Trollope, Mr. Anthony Thomson, Sir William, M. A., LL. D., D. C. L., F. R. S. Trantmann, Professor Tyndall, Professor, LL. D., F. R. S. Tourgueneff, Mr. Ivan Twain, Mark Walford, Mr. Cornelius, F. S. S., F. I. A. Watts, Mr. G. F., R. A. Wilson, Professor Andrew, Ph. D., F. R. S. E. Winser, Mr. Justin Wurtz, M. III. APPENDIX TESTIMONIES OF: Bennett, Dr. Risdon Brooke, The Rev. Stopford A., M. A. Bryant, William C. Chambers, Dr. King Fraser, Professor Thomas R. Herkomer, Hubert, A. R. A. Higginson, Colonel Thomas Wentworth Howitt, William Kingsley, The Rev. Charles Martineau, Harriet Miller, Professor Proctor, Mr. R. A., F. R. S. Richardson, Dr. B. W., F. R. S. Sala, Mr. George Augustus Temple, Bishop Thompson, Sir Henry, F. R. C. S. Williams, Mr. W. Mattieu, F. R. A. S., F. C. S. Yeo, Dr. Bumey, M. D. IV. CONCLUSION STUDY AND STIMULANTS THE REV. DR. ABBOT, EDITOR OF THE "CHRISTIAN UNION," NEW YORK. I have no experience whatever respecting tobacco: my general opinion is adverse to its use by a healthy man; but that opinion is not founded on any personal experience, nor on any scientific knowledge, as to give it any value for others. My opinion respecting alcohol is that it is a valuable and necessary ingredient in forming and preserving some articles of diet--yeast bread, for example, which can only be produced by fermentation--and that its value in the lighter wines, those in which it is found in, a ratio of from 5 to 10 per cent., is of the same character. It preserves for use other elements in the juice of the grape. As a stimulant, alcohol is, in my opinion, at once a deadly poison and a valuable medicine, to be ranked with belladonna, arsenic, prussic acid, and other toxical agents, which can never be safely dispensed with by the medical faculty, nor safely used by laymen as a stimulant, except under medical advice. As to my experience, it is very limited; and, in my judgment, it is quite unsafe in this matter to make one man's experience another man's guide: too much depends upon temperamental and constitutional peculiarities, and upon special conditions of climate and the like.