THE ORDER CETACEA, 



29 



estimated at a ton, and so on in proportion. The an- 

 nexed cuts will give some idea of these laminae. 



Fig. 1. 



A SIDE VIEW OF ONE OF THE PLATES OF BALEEN, 



OR WHALEBONE. 



A, The part projecting beyond the gum. B, the por- 

 tion sunk into it. C C, a white substance surrounding 

 the whalebone, there forming a projecting bend, and also 

 passing between the plates, constituting their external 

 lamellae. D D, the part analogous to the gum. E, a 

 fleshy substance, covering the jaw-bone, and on which 

 the inner lamella of the plate is formed. F, the plate 

 terminating in a species of bristle or hair. 



