Length.

Scantling.

Deflection.

Corresponding weight.

Weight with which it sank down.

Remarks.

inches.

in.

in.

inches.

lbs.

lbs.

58

2

x

2

.03

3254

...

Bent in direction of diagonal, one end crushed about one inch from bottom, and in the middle, two. thirds or three-fourths of the area being crippled.

...

...

...

.10

6505

...

...

...

.12

8857

...

...

....

.17

11209

12385

58

2

x

2

.09

4153

...

...

...

.12

6505

...

...

...

.15

8857

..

...

...

.32

11209

11601

Crushed as before.

58

2.9

x

14

.13

4153

...

Sunk by bending in the direction of the smaller side.

...

...

...

.17

5329

..

..

...

.25

6505

7681

In another experiment a piece of the same size broke with somewhat less than this.

58

3.47

x

1.15

.42

4155

4349

Sunk by bending in the direction of the smaller side.

* 'Phil Transactions,' 1840.