Transactions of the American Society of Civil Engineers, vol. LXX, Dec. 1910 | Page 4

pounds per square inch. K: Modulus of elasticity, in thousands of
pounds per square inch. L: Elastic resilience, in inch pounds per cubic
inch. M: Number failing by longitudinal shear.
LOBLOLLY PINE.
+==================================================
======================+ | | Locality| DIMENSIONS. | | | | | | | | |
of +--------------+ Grade. |Condition | | | | | | A | Growth. |Section,|Span,| |
of | | B | C | D | | | | in | in | |seasoning.| | | | | | | | inches.|feet | | | | | | |
+---+---------+--------+-----+---------+----------+-------+---+-----+----+ | | |
6 by 7| | | | | | | | | | | 6 by 10| 10 | | | | | | | | 1 |South | 4 by 12| to | Square |

Green |Average| | 48.0| 5.7| | |Carolina.| 6 by 16| 15.5| edge | |Maximum|
42| 92.1|11.7| | | | 8 by 14| | | |Minimum| | 30.2| 2.3| | | | 8 by 16| | | | | | | |
+---+---------+--------+-----+---------+----------+-------+---+-----+----+ | | |
6 by 7| | | | | | | | | | | 4 by 12| 10 | | | | | | | | 2 |South | 6 by 10| to | Square
|Partially |Average| | 27.7| 5.0| | |Carolina.| 6 by 16| 16 | edge |air dry.
|Maximum| 18| 29.2| 8.2| | | | 8 by 16| | | |Minimum| | 25.5| 2.5| | | |10 by
16| | | | | | | |
+---+---------+--------+-----+---------+----------+-------+---+-----+----+ | | |
6 by 7| 10 | | | | | | | | |South | 4 by 12| to | Square |Partially |Average| |
21.0| 5.6| | 3 |Carolina.| 6 by 10| 15 | edge |air dry. |Maximum| 19|
24.9|17.2| | | | 6 by 16| | | |Minimum| | 15.0| 2.7|
+---+---------+--------+-----+---------+----------+-------+---+-----+----+ | | |
| 6 | | |Average| | 22.4| 4.8| | 4 |Virginia.| 8 by 8| to | Square |Partially
|Maximum| 12| 27.7| 8.8| | | | | 16 | edge |air dry. |Minimum| | 17.8| 2.5|
+---+---------+--------+-----+---------+----------+-------+---+-----+----+ | | |
| 6 | | |Average| | 64.0| 3.0| | 5 |Virginia.| 8 by 8| to | Square | Green
|Maximum| 17|100.5| 4.0| | | | |15.5 | edge | |Minimum| | 38.8| 2.5|
+---+---------+--------+-----+---------+----------+-------+---+-----+----+
LONG-LEAF PINE.
+---+---------+--------+-----+---------+----------+-------+---+-----+----+ | | |
| | | |Average| | 25.0|13.7| | 6 |South | 6 by 8| 15 |Merchant-|Partially
|Maximum| 22| 40.3|25.4| | |Carolina.|10 by 16| |able |air dry |Minimum|
| 17.3| 6.2|
+---+---------+--------+-----+---------+----------+-------+---+-----+----+ | | |
| | | |Average| | 27.3|18.0| | 7 |Georgia. |10 by 12| 15 |Merchant-|Partially
|Maximum| 22| 34.5|29.0| | | | | |able |air dry. |Minimum| | 20.0|11.0|
+==================================================
======================+
+==================================================
===================+ | | Locality| | F | | | | | | | | | of | +---------+ | | |
| | | | A | Growth. | E | | | I | J | K | L | M | Remarks. | | | | | G | H | | | | | | | | |
| | | | | | | | | |
+---+---------+----+----+----+-----+------+-----+----+---+------------+ | | | | |
| | | | | |Moisture | | | | | | | | | | | |above | | 1 |South |0.50|46.2|31.2|3,150|

5,580|1,426|0.45| |saturation | | |Carolina.|0.60|56.8|37.5|5,210|
8,460|1,920|0.99| 7 |point in | | | |0.40|35.6|25.0|1,675| 3,120| 905|0.07|
|all cases. | | | | | | | | | | | | |
+---+---------+----+----+----+-----+------+-----+----+---+------------+ | | | | |
| | | | | | | | | | | | | | | | | | | | 2 |South |0.50|40.0|31.2|3,380| 5,650|1,435|0.45|
|Moisture | | |Carolina.|0.55|43.7|34.4|4,610| 8,090|1,880|0.76| 0 |from
25 to | | | |0.45|35.6|28.1|2,115| 3,600|1,152|0.20| |30 per cent.| | | | | | | | | |
| | | +---+---------+----+----+----+-----+------+-----+----+---+------------+ | |
| | | | | | | | | | | |South |0.50|37.5|31.2|2,970| 5,690|1,340|0.39| |Moisture | |
3 |Carolina.|0.58|45.6|36.2|4,850| 8,100|2,040|0.69| 2 |less than | | |
|0.41|31.2|25.6|1,730| 2,910| 906|0.10| |25 per cent.|
+---+---------+----+----+----+-----+------+-----+----+---+------------+ | |
|0.46|35.6|28.8|3,260| 5,180|1,180|0.51| | | | 4
|Virginia.|0.58|43.1|36.2|5,300| 8,950|1,728|1.05| 0 | | | |
|0.37|30.0|23.1|1,280| 2,180| 606|0.13| | |
+---+---------+----+----+----+-----+------+-----+----+---+------------+ | |
|0.43|43.7|26.9|1,935| 3,490| 744|0.31| |Very rapid | | 5
|Virginia.|0.51|51.9|31.9|3,185| 4,720|1,193|0.78| 0 |growth; poor| | |
|0.35|35.0|21.9| 956| 2,180| 357|0.12| |quality. |
+---+---------+----+----+----+-----+------+-----+----+---+------------+
LONG-LEAF PINE.
+---+---------+----+----+----+-----+------+-----+----+---+------------+ | |
|0.58|45.6|36.2|3,800| 7,160|1,560|0.53| | | | 6 |South
|0.76|60.0|47.5|4,970|10,020|2,010|0.78| 9 | | |
|Carolina.|0.50|39.4|31.2|2,220| 5,450|1,190|0.21| | |
+---+---------+----+----+----+-----+------+-----+----+---+------------+ | |
|0.69|54.7|42.9|5,581| 8,384|1,820| -- | |Excellent | | 7 |Georgia. |0.79| --
|49.4|9,600|11,410|2,920| -- | 6 |merchantable| | | |0.50| -- |31.4|3,547|
4,836|1,167| -- | |grade. |
+==================================================
===================+
TABLE 3.--LOBLOLLY PINE.--BENDING TESTS ON BEAMS
SEASONED UNDER DIFFERENT CONDITIONS.
(8 by 16-in. section; 13-1/2 to 15-ft. span.)

Columns in table:
A. Number of tests. B. Fiber stress at