Usage examples for abacus

  1. Flutings also adorn the short architraves each side of the fanlight, and the abacus of the pilaster columns which is carried across a supplementary lintel in front of the lintel proper, the latter being several inches to the rear because of the deeply recessed arrangement of the door. – The Colonial Architecture of Philadelphia by Frank Cousins Phil M. Riley
  2. Is it a coincidence that the Greeks used an abacus, or counting- board, on which the beads slid up and down in vertical grooves, while on the Chinese counting- board the only difference is that the beads slide up and down on vertical rods? – China and the Chinese by Herbert Allen Giles