TO BRIDGES

177

Breadth,

HEIGHT ,

ARCS,

CHORDS , t MATERIALS.

PT.

PT.

36

-

-

1 -

660

Brick

-

-

-

- -

-

» Boats

-

-

-

- -

-

Boats

-

-

-

-

- Boats

*

-

* -

-

- Ships

30

12

- -

-

Timber

4

-

- -

-

Bamboos

6

- 80

- -

-

T rees

3

- 70

* -

-

Two Ropes

5

- 42

- -

-

Seven Chains

2

- 60

- -

-

Seven Chains

4

- 20

- -

-

Two Chains

8

-

- -

-

- Beams

9

- 34

- -

-

Logs of Fir

-

-

- -

-

Stone and Wood

-

- 750

1 -

600

- Stone

-

-

- -

-

- Barges

25

-

301 -

-

- White Stone

25

-

100 -

-

- White Stone

50

-

- -

-

- Brick and Stone

-

-

1 -

98

Timber

-

- 24

1 -

95

Marble

23

-

-

2 -

-

Timber

-

-

1 -

-

- Stone

-

-

1 -

-

- Timber

-

-

• »

1 -

-

- Timber

-

-

• *

-

-

Trees

23