1867. Whittle, James P., M.D., Weare, N. H. 1859. Wild, Edward A., M.D., Austin, Nevada. 1855. Wilder, Louis de V., M.D., 314 W. 34th St., New York. 1876. Wildes, Thomas, M.D., 37 W. 23d St., New York. 1867. Willard, L. H., M.D., Alleghany, Pa. 1876. Williams, Adaline, M.D., St. Charles, Minn. 1876. Williams, Nancy T., M.D., Gardiner, Me. 1871. Williams, Thomas C., M.D., 567 N. 5th St., Philadel phia. 1876. Williamson, Alonzo P., M.D., Middletown, N. Y. 1872. Williamson, Matthew S., M.D., 29 N. 11th St., Philada. 1859. Wilson, G. H., M.D., W. Meriden, Conn. 1876. Wilson, Joseph H., M.D., Bellefontaine, O. 1865. Wilson, T. P., M.D., Cincinnati, O. 1875. Wilson, William W., M.D., Rockford, Mich. 1875. Winans, Jonathan Edwards, M.D., Newark, N. J. 1872. Winslow, Caroline B., M.D., 1 Grant Place, Washington, D. C. 1878. Winslow, W. H., M.D., 334 Penn Av., Pittsburg, Pa. 1854. Wood, J. B., M.D., West Chester, Pa. 1860. Wood, O. S., M.D., Omaha, Neb. 1859. Woodbury, J. H., M.D., 165 Boylston St., Boston, Mass. 1870. Woodbury, William H., M.D., 311 W. Washington St., Chicago, Ill. 1857. Woodruff, Francis, M.D., Detroit, Mich. 1868. Woods, J. U., M.D., Holyoke, Mass. 1873. Woods, Mary A. B., M.D., Erie, Pa. 1868. Woodvine, Denton G., M.D., 739 Tremont St., Boston, Mass. 1870. Woodward, Alfred W., M.D., 140 Warren Av., Chi cago, Ill. 1869. Woodward, A. M., M.D., 52 W. 29th St., New York. 1873. Woodyatt, W. H., M.D., 90 E. Washington St., Chicago, Ill. 1872. Worcester, Samuel, M.D., Burlington, Vt. 1870. Worcester, Samuel H., M.D., Salem, Mass. 1870. Worthington, A. F., M.D., Cincinnati, O. 1869. Wright, A. R., M.D., 162 Pearl St., Buffalo, N. Y. 1867. Wright, William, M.D., 96 5th St., Brooklyn, E. D., N. Y. 1874. Wright, H. Amelia, M.D., New York. 1875. Yeomans, Clara, M.D., Clinton, Iowa. 1858. Youlin, John J., M.D., 130 Grove St., Jersey City, N. J. CORRESPONDING MEMBERS. 1873. Dr. Tomasso Cigliano, Naples, Italy. 1873. Dr. Sambhul Mukhopadhyaya, Wellington Square, Calcutta, India. 1876. Dr. Albert Haupt, Chemnitz, Saxony. HONORARY MEMBERS. 1875. Dr. Bernardino Dadea, Turin, Italy. V. MICROSCOPIC EXAMINATION OF TRITURATED METALS AND OTHER HARD INSOLUBLE SUBSTANCES. BY C. WESSELHEFT, M.D., BOSTON. IN the following pages I propose to discuss a subject which has never yet been fully examined. The hypothetically infinite divisibility of matter, and the actual behavior of certain substances under the methods of comminution in use, though widely different when properly examined, have hitherto been regarded as identical; but we should no longer remain in doubt as to the nature of substances in daily use, even if the disclosures we shall have to accept do not harmonize with what we have regarded as true, or with what we would rather believe to be true. If such disclosures oblige us to set aside a small portion of that which we have hitherto regarded as belonging to our list of medicinal preparations, and if it compels us to set aside a portion of what we have regarded as a pathogenetic record, or if it should henceforth be necessary to regard a portion of our cures as no longer attributable to certain preparations supposed to contain medicinal substances, it will only be for the best advantage of homoeopathy and its progress. Such a process of elimination should be initiated fearlessly by ourselves now, and not be left to antagonists, who would, at some remote period, taunt us with errors, and thrust them at us in a less acceptable manner than if we had grappled with the problem ourselves. No one is better fitted for the task of correcting errors in our school than he who is most firmly convinced of its far-reaching truths, and no one can entertain such convictions of the truth of a principle like |