XIV, 6 King: Philippine Bast-fiber Ropes 641 
TABLE XL.—Maximum variation from the mean tensile strength of rope 
in the dry and the wet series of five tests each—Continued. 
Maximum variation! 
from mean tensile 
strength, 
Fiber. ass oie 
Dry Wet 
series. series. 
Per cent.| Per cent. 
Musa textilis; grade “F’’ abacd rope, $1 millimeters in cireumference _______. 5 8 
Musa textilis; grade “F”’ abac4 rope, 15 millimeters in circumference ________ 10 13 
Musa textilis; grade ‘‘G’’ abac4 rope, 26 millimeters in circumference ________ 7 6 
Musa textilis; grade “‘G" abacé rope, 16 millimeters in circumference ________ 3 15 
Agave cantala; maguey, grade Cebu No. 2, rope; 26 millimeters in circum- 
ROE ia ion sign tonreamcen otis pees Pe Ba 8 ll 
silamianetch as neh oe ee oe A ae 11 
HAND-LAID ROPES MADE OF MISCELLANEOUS FIBERS, 
Cocos nucifera; rope 50 millimeters in-clrenmterenes 26 8 412 
Cocos nucifera; rope 44 millimeters in tircumierenee 2 8 a2 
Cocos nucifera; rope 24 millimeters in eireumilerente 22005 os a 25 20 
Coregiie Ralus betta 76 oe ees 11 10 
PN OTINNE ID sao sg co oa wniapaecat ig ae 15 18 
PITT DINAN i 2 ie see oe ole ee es 14 e10 
Dendrocdlamus merrilliamus.._ ooo. occ ence een 29 19 
PROMI eset inkgret en sioe Sag ocakcct cece ge ee 16 13 
* Three tests only. © Four tests only. 
> No test made. 4 Only two tests made and these are practically identical. 
In Table XLI are tabulated the number of rope test speci- 
mens ruptured, together with the manner of their failure. Two 
hundred forty-eight dry specimens were broken, of which 122, 
or 49 per cent, failed in eye-splices. Of the 217 wet test pieces 
78, or 36 per cent, ruptured in eye-splices, 
Fifty-seven per cent of the dry, and 69 per cent of the wet, 
specimens that gave maximum tensile-strength values failed 
in the unspliced portion of the test pieces. Breaks in eye- 
splices do not necessarily imply that the various test specimens 
are faulty, abnormal, or low in value; for frequently the 
minimum values in both wet and dry specimens were obtained 
from those that failed in the unspliced portion of the rope 
between the eye-splices, whereas the maximum values were 
often obtained for pieces that ruptured in the eye-splices, 
In the dry specimens the number of breaks and of maximum 
values from test pieces breaking in the eye-splices is about 
equal to the number of those obtained from test pieces that 
166157——6 
