Page:Timber and Timber Trees, Native and Foreign.djvu/322

302 {| Transverse experiments.—Butt length. specimen. required to break each piece. to sepcific gravity 600. to break 1 square inch. apparatus weighing 390 lbs. weight was removed. of breaking cohesion on 1 square in. of the specimen. —These specimens broke with a moderate length of fracture.
 * colspan=2 rowspan=2 |Number of the
 * colspan=2 rowspan=2 |Number of the
 * colspan=3 |Deflections.
 * rowspan=2 |Total weight
 * rowspan=2 |Specfic gravity.
 * rowspan=2 |Weight required
 * rowspan=2 |Weight required
 * colspan=2 |Tensile Experiments
 * With the
 * With the
 * After the
 * At the crisis
 * Direct
 * Number
 * colspan=2|
 * Inches.
 * Inch.
 * Inches.
 * lbs.
 * lbs.
 * lbs.
 * 35|||c′
 * 1.50
 * .15
 * 4.00
 * 760
 * 550
 * 829
 * 190.00
 * 36|||b′
 * 1.40
 * .15
 * 3.75
 * 710
 * 580
 * 734
 * 177.50
 * 37|||a′
 * 1.50
 * .20
 * 4.00
 * 705
 * 560
 * 755
 * 176.25
 * 38|||a
 * 1.25
 * .00
 * 3.75
 * 765
 * 595
 * 771
 * 191.25
 * 3325
 * 47
 * 39|||b
 * 1.25
 * .15
 * 3.00
 * 640
 * 580
 * 662
 * 160.00
 * 3080
 * 48
 * 40|||c
 * 1.35
 * .10
 * 5.25
 * 810
 * 555
 * 876
 * 202.50
 * 3920
 * 49
 * colspan=2|Total
 * 8.25
 * .75
 * 23.75
 * 4390
 * 3420
 * 4627
 * 1097.50
 * colspan=2|Aver.
 * 1.375
 * .125
 * 3.958
 * 731.66
 * 570
 * 771
 * 182.91
 * }
 * colspan=2|Total
 * 8.25
 * .75
 * 23.75
 * 4390
 * 3420
 * 4627
 * 1097.50
 * colspan=2|Aver.
 * 1.375
 * .125
 * 3.958
 * 731.66
 * 570
 * 771
 * 182.91
 * }
 * 771
 * 182.91
 * }
 * }
 * }

E = 722360. S = 1922.

The mean of the whole being E = 698240. S = 1805.

Relatively considered, these experiments stand as follows:—