a.—are, (of the French metric system.)
A. or Ans.—Answer.
A. A. G.—Assistant Adjutant-General.
A. A. P. S.—American Association for the Promotion of Science.
A. A. S.—Academiæ Americanæ Socius, Fellow of the American Academy (of Arts and Sciences).
A. A. S. S.—Americanæ Antiquarianæ Societatis Socius, Member of the American Antiquarian Society.
A. B.—Artium Baccalaureus, Bachelor of Arts.
A. B. C. F. M.—American Board of Commissioners for Foreign Missions.
Abp.—Archbishop.
Abr.—Abridgment.