"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:
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, is a representation of the harpoon with the withers when tied together.
"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.
- On this principle the reliance for security does not depend