The  writer  tested  these  specimens  with  the  above  results,
and  also  many  other  specimens  from  various  places;  the
general  average  was  the  same  as  above.  The  piers  were  built
of  the  above  stone.  The  tests  were  made  at  the  Ohio  State
University,  Columbus.  These  specimens  were  all  compara-
tively fresh  from  the  quarries,  as  we  could  not  wait  very  long
before  deciding  upon  the  quarry.  The  specimens  would
doubtlessly  have  resisted  a  higher  pressure  after  seasoning
thoroughly.  Pasteboard  cushions  are  now  recommended  as
better  than  pine.    The  following  are  the  quantities  and  costs :

973,210  feet  B.M.  pine  timber  in  coffer-dams,  cribs,  and  foundations  under  piers.
944.413    '*      "oak       *'      "      *'        *'       main  and  sheet  piling.
3.597    "      "     poplar  ••      "      "        "       sheet  piling.
13,571  lineal  feet  of  piles  in  foundations  and  coffer-dams.
3.499  cubic  yards  excavation  sand  and  graveL
649    '*        "      concrete  in  foundations.
997  rip-rap  stone.
