72 MADRAS FISHERIES BULLETIN VOL. XII, 



The first variety is of the true Amboina type with withy loop 

 secondary ; it needs no further description. 



The second approaches the Burti U-shape in the form of the 

 secondary, but instead of being of withy or of rattan it is made 

 from a natural angle of timber, with a flat base ; this enables it to 

 be lashed more securely upon the upper surface of the float when 

 the latter is solid (Fig. 37*7). The two arms are attached to the 

 boom in the usual Buru fashion. In canoes where the floats 

 consist of bamboo, the base of the U-fork is prolonged into a 

 short stout peg ; this is inserted into a hole cut in the bamboo, a 

 device which contributes considerably to provide a strong and safe 

 attachment (Fig. 37ft). 



a 



b. 



FIG. 37. — Two forms of the Ceram variety of the U- attachment (the booms shown in 



transverse section). 



The third type of outrigger is one of the innumerable varia- 

 tions of the East Indonesian design. It has the usual two booms, 

 with a float on each side, the connexion being made by an 

 oblique-elbowed secondary of the peculiar form figured below. 

 (Fig. 38). The long limb is nearly straight, and is lashed to the 

 outer upper surface of the shaped timber float. A distinct knuckle 

 is present on the upper side of the elbow ; the free extremity of the 

 short limb is secured in position by a long lashing to the boom. A 

 single tough brace lies across the ends of the two booms, within 

 the angles of the joints ; unlike those previously described, there 

 are only two long lashings coupling the float with the brace, 

 one near each end ; by the tightness of the lashings the gentle 

 curve given to both ends of each float when shaped is retained, 



