XIV, 6 King: Philippine Bast-fiber Ropes 575 
sufficiently accurate to give the percentages in the nearest whole 
per cent. 
Breaking lerigth . — Stresses of yarns, strands, and rope during 
tensile-strength tests are not distributed uniformly, but are more 
or less localized because of the heterogeneous nature of fiber 
bodies and the various mechanical defects. As a rule, nearly 
all vegetable-fiber ropes of three and four strands, including 
those here studied, break in one strand, seldom in two, and very 
Table IV. — Ropes made of Philippine fibers arranged in order of mean 
tensile strength when wet, beginning with the strongest. The same 
results, arranged in a different order, are given in Table XLII. 
ROPES MADE OF BAST FIBERS. 
No. 
Fiber. 
Gnetum sp. 
Ficus palatvanensia 
Ficus pachyphylla 
Malaehra fasciata 
Sida acuta 
Ficus henjamina 
Bombycidendron vidalianum 
Pterocymbitim iinetorium 
Helicteres hirsuta...^ 
Greivia eriocarpa 
Urena lobata 
Sterculia stipularis; forma 
Cordia citmingiana 
Corchorus olitorius 
Bombax ceiba 
Artocarpus communis; bast from young tree 
Greioia muliijiora. 
Ahromafastuosa’y unretted bast 
Sterculia crassiramea 
Columbia blancoi... 
Goniothalamus amuyon 
Thespesia lam.pas 
Sterculia oblongata 
Kleinhovia hospita 
Commersonia bartramia 
Cordia myxa 
Tj •ema orientalis 
Pterospermum diver sifolium 
Allaeanthus glaber - 
Ficus forstenii 
Sterculia foetida 
Grewia bilamellata 
Average 
Mean wet tensile 
strength. 
Per sq. 
Per sq. 
cm. 
inch. 
Kilos. 
Lbs. 
1, 000 
14, 600 
766 
10,900 
544 
7,760 
543 
7, 700 
502 
7, 190 
471 
6, 700 
468 
6,670 
435 
6, 180 
396 
5, 620 
381 
5, 460 
366 
5, 200 
366 
6,200 
364 
6, 160 
360 
B, 100 
351 
4, 960 
340 
4, 830 
332 
4, 730 
319 
4,630 
308 
4,380 
306 
4, 340 
293 
4, 180 
291 
4, 130 
291 
4,130 
286 
4,070 
266 
3, 780 
263 
3,730 
262 
3,720 
261 
3,690 
253 
3,690 
222 
3, 160 
200 
2,840 
180 
2,570 
375 
6,338 
