XIV, 6 
King: Philippine Bast-fiber Ropes 
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 f rom the hast of Goniothalamus 
amuyon, 
[Rope made at Dolores, Abra Province.] 
Mean diameter: 
Pdillimeters 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) 9 
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 
