Imagens das páginas
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Locks Nos. 1, 2, 3, 4, 5 and Guard Lock.

Excavation of earth,

Cubic yds.,

93,700

$0 25

$23,425 00

do Gneiss rock,

do

321,270

2.50

803,175 00

do

limestone rock,

do

155,420

150

233,130 00

Embankment,

do

36,810

30

11,043 00

$1,070,773 00

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346,430 19

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