BLOCK n.
A square, or portion of a city inclosed by streets, whether occupied by buildings or not. The new city was laid out in rectangular blocks, each block containing thirty building lots. Such an average block, comprising 282 houses and covering nine acres of ground, exists in Oxford Street. Lond. Quart. Rev.…
BOWLDER; BOULDER n.
A mass of any rock, whether rounded or not, that has been transported by natural agencies from its native bed. See Drift. Bowlder clay, the unstratified clay deposit of the Glacial or Drift epoch, often containing large numbers of bowlders. -- Bowlder wall, a wall constructed of large stones or bowlders.…