Massachusetts Dental Society. This organization was formed in May, 1864, and received an act of incorporation from the Legislature in April, 1865. Its object is to cultivate the science and art of dentistry and all its collateral branches, by means of a library and museum, professional lectures, and publications, and by premiums and medals for original researches and discoveries; to elevate and sustain the professional character of dentists, and to promote amongst them mutual improvement, social intercourse, and good-will. It includes active, junior, corresponding, and honorary members. Active members consist of practitioners of dentistry residing in the State of Massachusetts. They must be twenty-one years of age, of good moral character, and have received a diploma from a respectable medical or - dental college, or have been five years in the practice of dentistry, including term of pupilage. Junior members consist of students of dentistry and dentists not eligible to active membership. Corresponding members consist of practitioners of dentistry residing in other States of the Union, or in foreign countries, who manifest a disposition to advance the science and art of the profession by contributing to its literature. Honorary memberships are conferred by the society on distinguished members of the profession, and others who may merit the distinction. The fee for admission to the society is two dollars. Active members pay an annual assessment of two dollars. Junior members pay only the admission fee. Corresponding and honorary members are exempt from the payment of all dues; and as a mark of distinction for long continued service in the profession, by special action of the society the dues of an active member may be remitted. The annual meeting of the society is held in Boston, on the second Thursday in December, and is of two days' continuance. The semi-annual meeting is held at such time, and in such town or city in Massachusetts other than Boston, as may be determined by the society. Ten active members are necessary to constitute a quorum. OFFICERS. President J. T. Codman, D. M. D., Boston. Vice-Presidents - D. G. Harington, D. M. D., A. M. Dudley, D. D. S. Recording Secretary · G. F. Grant, D. M. D., Boston. Corresponding Secretary — T. H.¡Chandler, D. M. D., Boston. Treasurer - Edward Page, M. D., D. M. D., Charlestown, Boston. G. F. Grant, D. M. D., Boston. Librarian Microscopist - R. R. Andrews, D. D. S., Cambridge. MEMBERS. J. W. Ball, D. D. S., 266 Tremont Street C. S. Bartlett, D. M. D., 142 Boylston E. P. Bradbury, D. M. D., 186 Boylston T. H. Chandler, D. M. D., 222 Tremont D. M. Clapp, Odd Fellows Building, Tremont John T. Codman, D. M. D., 347 Columbus Avenue Thomas Cogswell, 149 A Tremont J. M. Daly, 29 Hollis D. S. Dickerman, D. D. S., 224 Tremont G. F. Grant, D. M. D., 102 Revere S. F. Ham, D. M. D., 21 La Grange W. M. Johnson, 28 Winter E. C. Dearborn H. C. Dennett, 583 Tremont J. W. Keyes, D. M. D., 347 Columbus Avenue S. J. McDougall, M. D., D. D. S., 581 Tremont T. W. Evans, D. D. S., Paris. J. H. McQuillen, M. D., Philadelphia. S. C. Taylor, Hartford, Conn. HONORARY MEMBERS. Joshua Tucker, Boston. S. S. White, Philadelphia. Merrimac Valley Dental Association. Organized in Lowell, Mass., October 29, 1863, for the purpose of promoting the welfare of the dental profession. Any respectable dentist may become a member. The annual meeting is held on the first Thursday of November, and the semi-annual meeting on the first Thursday of May. An annual assessment of one dollar is paid by each member. OFFICERS. President A. M. Dudley, D. D. S., Salem, Mass. Vice-Presidents T. Fillebrown, D. M. D., L. F. Locke, M. D. Treasurer-H. Hill, D. D. S., Manchester, N. H. Recording Secretary — W. E. Riggs, D. D. S., Lawrence, Mass. Corresponding Secretary —J. H. Kidder, M. D., Lawrence, Mass. Librarian-A. Lawrence, M. D. ACTIVE MEMBERS. Boston, Mass. T. W. Clements, Brookline, Mass. Wilkes Allen, Cambridge, D. S. Bartlett, 66 A. T. Bigelow, J. T. Codman, J. B. Coolidge, H. E. Dennett, D. B. Ingalls, J. W. Palmer, D. G. Harrington, J. P. Dennett, C. W. Hodgdon, S. J. McDougall, S. C. Bancroft, M. Newton, C. H. Osgood, I. A. Salmon, L. D. Shepard, G. F. Waters, G. A. Gerry, Lowell, I. J. Wetherbee, L. Rideout, J. A. Perkins, Amesbury, J. Hemmenway, Athol Depot, O. F. Swasey, Beverly, |