Av.—Average; Avenue.
Avoir.—Avoirdupois.
A. Y. M.—Ancient York Masons.
b.—born; book.
B. A.—Bachelor of Arts.
Bal.—Balance.
Balt.—Baltimore.
Bar.—Baruch.
Bart. or Bt.—Baronet.
bbl.—Barrel.
B. C.—Before Christ.
B. C. L.—Bachelor of Civil Law.
B. D.—_Baccalaureus Divinitatis_, Bachelor of Divinity.
Bds. or bds.—Boards (bound in).
Benj.—Benjamin.
Bk.—Book.
B. LL.—_Baccalaureus Legum_, Bachelor of Laws.
B. M.—_Baccalaureus Medicinæ_, Bachelor of Medicine.
Bost.—Boston.
Bot.—Botany.
Bp.—Bishop.
B. R.—_Banco Regis_ or _Reginæ_, the King’s or Queen’s Bench.
Br.—Brig.
Brig.—Brigade; Brigadier.
Brig.-Gen.—Brigadier-General.
Brit. Mus.—British Museum.
Bro.—Brother.
Br. Univ.—Brown University.
B. S.—Bachelor in the Sciences.
bu.—bushel.
B. V.—_Beata Virgo_, Blessed Virgin.
B. V.—_Bene vale_, farewell.
ca.—centiare, (metric system.)
C., ch. or chap.—Chapter.