XIV, 6 
King: Philippine Bast-fiber Ropes 
623 
TABLE XXIX.—Physical tests of rope made from the bast of Artocarpus 
communis. 
From young| From old 
st.a t.b 
Mean diameter: | 
MARE ea ee en ee 6.1 9.6 | 
ICON os seas ee ee ee 0.24 9.38 
Mean perimeter, or girth: 
PAINS ate ee Ie ee i 19 30 
BICHON: 6 SO cass eee eee ee ea 0. 75 1.18 
True mean sectional area: 
SAPO IU GLOIS cod cc eccie aun panac ce eicutaes Ubawseteia 28.4 60.8 
ORIG IUCN iis os oo gc ee ys 0.044 0.094 | 
Ultimate tensile strength (dry): 
Meat ti kilosranit S34 ee 101 © 222 
Maxinourni tn kilogreine 65 ok ie ee ce Bas ccutipnigs 
Minivatiny in kilograms 2032 es ees ee Bird eps oe ec 
Meat in: poands sore. see eee Re ee 228 490 
Maximum 1h nothdscc. se ce ee ee Ot oe a a ee 
Minimvom in pound: 25. chien. aoe 990 5 ce Acudobeceoesuss 
’ Ultimate tensile strength (wet): 
Mean in kilograms $22 ee ee ee 96.5 (4) 
Maximum tn hilogramésc:o st ea aes ee 112 (4) 
Mintianin in klopraine cc eee ee 84.3 (4) 
Monn in pounds... see a ee a 218 (4) 
Masitvunr in-pounitle os ee a 246 (4) 
Mabimens in potnds sie sere Bee Bors ets ee 186 {a) 
Mean ultimate tensile strength per unit area (dry): 
Kilograms per square centimeter ____--------_-------.----.--_---- 356 367 
rounds per square inch 256. s.65 aesse cess ce 5, 070 5, 220 
Mean ultimate tensile strength per unit area (wet): 
Kilograms per square centimeter ---_..-----.-------- 222.22... 340 (4) 
Pounds per square inch ETE wR TTL Si ted RS 4,830 (4) 
Mean elongation at instant of rupture: 
DRY a aa ee eee eS a ype ee cen vee eo per cent__ 11 (4) 
WOE ci ncss sa cabsn ce rrades ee ee eG fs (eee 15 (4) 
Mean weight per unit length: 
ClVRIAE DAP SHeTOR ee oa se ck a 22.8 48.8 
POINTE DOPE OG pice cea ee oS ne cba ew cc ceko das 0.0153 0.0328 
Average breaking length: 
MOU er a hea ee re ae oe 4, 450 4,560 
a a oe ee eae 14, 600 14, 900 
MAQUI. awa ee el per cent... 9.25 14.7 
* Rope made at Abbualan, Dolores, Abra Province. 
> Rope made at Sappaac, Abra Province, based on assumed true area. 
€ Only sufficient rope to make one test. 
“No test made. 
