MOLLUSC A 67 



such as soaking the wood in creosote and other materials but they 

 all seem to give only temporary relief. In the case of docks and 

 wharves the difficulty is being overcome, in many places, by the use 

 of concrete. 



The cephalopods, Figs. 46 and 460, are of comparatively little 

 economic importance. The squid are used by fishermen for bait and 

 are an important food for fishes. The rough white cuttle bone is 

 used in bird cages, and the well-known pigment, sepia, is made from 

 the ink of certain cephalopods, Sepia in particular. 



The Amphineura and the Scaphopods are of practically no economic 

 importance other than as zoological specimens. 



