640 Philippine Journal of Science 1919 
. VARIATIONS IN TESTS 
The handmade bast-fiber rope, with one or two exceptions, 
gave very erratic results. Taken as a whole the wet specimens 
gave somewhat more erratic results than the dry ones. For 
the dry specimens the maximum average variation from the 
mean was 17 per cent, and for the wet, 20 per cent. Table XL 
records the maximum variations from the mean in tensile- 
strength tests of five samples, each, of dry and wet rope 
specimens. 
TaBLE XL.—Mazimum variation from the mean tensile strength of rope 
in the dry and the wet series of five tests each. 
HANDMADE BAST-FIBER ROPES. 
| Maximum variation 
from mean tensile 
strength. 
Fiber. 
| : Dry Wet 
series. series, 
; 
: Per cent. | Percent. 
Abroma fastuosa; unretted bast...-.-. 25-2 ooo. on ee es 21 22 
A bron sastuoed: vetted pant. 2.5 oe ee ca ee a6 (b) 
Commerionic bast ee as ee ee 20 26 
Fleliaterds Waving a aw ons os 17 il 
Tilaialiowits Omar oo a ek es Ss ne nsen mee epheeaae 17 30 
Pterocymbium tinctoriwm -_....-----------------------------------------0-7--- 26 18 
Plevoaperimum dvterniyonaie 2 nS 2 no a ee cn wee 14 8 
Stevetilid Criramnbs oe ee 5 16 
Sieweulia foalide os beeen ete 4 28 
Steve Wolo a SS A aN ea eae 9 17 
Stercislea stipalaae 66 ea 29 22 
Bombycidendron vidalianwm: .. ..... 5. 2... 5 on oc ct etwas nse 18 30 
Malashed: fiscal a ey Sin wow omen nena 20 6 
Saeleh CEO ra a ee 12 e7 
Thadpated Taide oak ee eae eee ewe 24 21 
trend lobala ss ee ee ee eee 34 11 
Colunibia blancok 3 ee ee eee 16 10 
Corchorice olitaries (22 ooo oe re eae eanse 7 18 
Grewia erinéarpa ...5 oS ee 19 34 
Growin bilimalliia 25.050 oc ee ee ee 11 29° 
Grew multiiore.... Se a 13 29 
Annee as Glauber eS a ee ee eee 15 19 
Artocarpus communis; young bast ..__.--.------------------------------------ 16 
Pheu Gena oo i a a ea enw eae 19 22 
Ficus forstenii -..... eNO EM LES earn arongin emer rath 21 
Wicks oaehyphella. 2 ee ee 16 25 
Ficus palawanensis __..........------- ect A  eteewh, a Oe 12 30 
CuidtaGedaleka.. oS ec St 20 18 
Conde Guess Se as ii needs ee a 15 34 
Paaleiin pa e eS oa ee cs anen nonwnege 295 it 
 Bombaz ceiba a eee 9 37 
Tass prtentalie-o5 os i ee ee 25 (4) 
Glonsdabiaiais Wied oo a a cc cas cacupanw ens ncasnocsanes 21 9 
Riba es a ee 17 aa 
e| 
