XIV, 6 King: Philippine Bast-fiber Ropes 639 
breaks, the maximum variation from the mean being 9 per cent, 
while that shown by the five dry specimens was 21 per cent. 
Three of the dry, and two of the wet, specimens failed in 
eye-splices. 
A summary of the tests of this species made in the Bureau 
of Science is given in Table XXXIX. 
TABLE XXXIX.—Physical tests of rope made from the bast of Goniothalamus 
amuyon. 
[Rope made at Dolores, Abra Province.] 
Mean diameter: 
Millimeters 9.2 
Inches 0.36 
Mean perimeter, or girth: 
Millimeters 29 
Inches 1.14 
True mean sectional area: 
Square millimeters 40.9 
Square inches 0.063 
Ultimate tensile strength (dry): 
Mean in kilograms 141 
Maximum in kilograms 157 
Minimum in kilograms 112 
Mean in pounds 311 
Maximum in pounds 347 
Minimum in pounds 247 
Ultimate tensile strength (wet) : 
Mean in kilograms 120 
Maximum in kilograms ' 130 
Minimum in kilograms 109 
’ Mean in pounds 264 
Maximum in pounds 287 
Minimum in pounds 241 
Mean ultimate tensile strength per unit area (dry): 
Kilograms per square centimeter 345 
Pounds per square inch 4,940 
Mean ultimate tensile strength per unit area (wet): 
Kilograms per square centimeter 293 
Pounds per square inch 4,180 
Mean elongation at instant of rupture: : 
Dry (per cent) 8 
Wet (per cent) 13 
Mean weight per unit length: 
Grams per meter 38.4 
; Pounds per foot 0.0258 
Average breaking length: : 
Meters 3,680 
Feet * 12,050 
Moisture (per cent) 8.65 
* 
