Page:Timber and Timber Trees, Native and Foreign.djvu/310

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Table CLVI.—Pitch Pine (American).
Transverse Experiments.—4th Example.
(Butt to top, inner part of the tree.)

Number of the specimen.	Deflections.			Total weight required to break each piece.	Specific gravity.	Weight reduced to specific gravity 600.	Weight required to break 1 square inch.
	With the apparatus weighing 390 lbs.	After the weight was removed.	At the crisis of breaking.
	Inches.	Inch.	Inches.	lbs.			lbs.
19	1.250	.000	4.500	760.00	583	782	190.00
20	1.500	.150	5.000	778.00	550	849	194.50
21	1.250	.000	3.750	752.00	531	850	188.00
22	1.500	.250	4.750	705.00	505	837	176.25
23	1.500	.250	4.750	695.00	501	832	173.75
24	1.500	.1O0	4.500	710{0|.00}}	498	855	177.50
Total	8.500	.750	27.250	4400.00	3168	5005	1100.00
Average	1.416	.125	4.541	733.33	528	834	183.33

Remarks.— Specimens all broke with fracture of a few inches in length.

E = 701530. S = 1925.

 

Table CLVII.—Pitch Pine (American).
Transverse Experiments.—5th Example.
(Butt to top, inner part of the tree.)

Number of the specimen.	Deflections.			Total weight required to break each piece.	Specific gravity.	Weight reduced to specific gravity 600.	Weight required to break 1 square inch.
	With the apparatus weighing 390 lbs.	After the weight was removed.	At the crisis of breaking.
	Inches.	Inch.	Inches.	lbs.			lbs.
25	1.500	.100	4.750	805	601	803	201.25
26	1.250	.150	5.000	778	572	8l6	194.50
27	1.250	.050	4.250	742	533	835	185.50
28	1.500	.150	4.000	725	530	821	181.25
29	1.500	.050	4.000	739	528	839	184.75
30	1.500	.000	3.750	741	518	858	85.25
Total .	8.500	.500	25.750	4530	3282	4972	113.-50
Average	1.416	.083	4.291	755	547	829	188.75

Remarks.— Specimens all broke with fracture of a few inches in length.

E = 677270. S = 1982.