APPENDIX. 
215 
“ Fig. 1. Hand-harpoons with barbs have already been 
tried ; but the whole have failed in consequence of the 
weakness of the joint^ ; they were of this form : 
Fig. 1. 
But Captain Manby’s joint of the withers is extremely 
ingenious, and promises the greatest possible security of 
which such a contrivance is susceptible. 
Fig. 2. 
‘‘ Fig. 2, is a representation of the harpoon with the withers 
when tied together t. 
Fig. 3 
“ In Figure 3 they are expanded. 
Figure 4 shows the barbs or withers detached. 
* In this harpoon, the reliance for security depends entirely on 
the pins. 
t On this principle the reliance for security does not depend 
