ed with hot asphaltum, thinned with
creosote oil. The heads of piles when cut shall be promptly coated with
the hot asphaltum and oil, even though the cut-off be temporary.

METHOD OF TESTING.

The tests were made on a Riehle 100,000-lb. machine in the Experimental
Engineering Laboratory of Tulane University of Louisiana. The machine is
provided with a cast-iron beam for cross-bending tests. The distance
between supports was 12 ft. The method of support was as follows: Each
end of the beam was provided with a steel roller which rested on the
cast-iron beam of the testing machine, while above the roller, and,
directly under the beam tested, there was a steel plate 6 by 8 in. in
area and 1 in. thick. The area was sufficiently great to distribute the
load and prevent the shearing of the fibers of the wood. The head of the
Riehle machine is 10 in. wide. A plate, 3/8 in. thick, 6 in. wide and 18
in. long, was placed between the head of the machine and the beam
tested.

[Illustration: FIG. 1.--DEFLECTON CURVES BEAM I]

[Illustration: FIG. 2.--DEFLECTON CURVES BEAM II]

TABLE 1.--SUMMARY OF RESULTS OF TRANSVERSE TESTS OF BEAMS AT TULANE
UNIVERSITY, FEBRUARY 10TH TO MARCH 2D, 1909.

Columns in table:

1. Number of beam.
2. Top or butt of log.
3. Width, in inches.
4. Height, in inches.
5. I = (bh^3)/12
6. Actual at elastic limit.
7. Maximum.
8. At elastic limit.
9. Maximum.
10. At elastic limit.
11. E = (Pl^3)/(48dI)
12. Weight, in pounds per cubic foot.

===========================================================================+
| | b | h | I | LOADS: |S = (Plc)/(4I) | d, |
| | | | | | |INCHES.|
| |------+-------+-------+-----------------+---------------+-------+
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
------+---+------+-------+-------+--------+--------+-------+-------+-------+
I | B | 6.28 | 15.94 | 2,120 | 22,000 | 45,900 | 2,975 | 6,200 | 0.41 |
I | T | 6.00 | 15.69 | 1,934 | 20,000 | 38,000 | 2,915 | 5,540 | 0.465 |
| | | | | | | | | |
II[A]| T | 6.37 | 15.81 | 2,098 | 20,000 | 43,450 | 2,722 | 5,918 | 0.380 |
II | B | 6.41 | 16.41 | 2,360 | 16,000 | 25,040 | 1,999 | 3,130 | 0.430 |
| | | | | | | | | |
III | T | 5.88 | 15.68 | 1,871 | 24,000 | 45,1