728 CAPT. D. GRAY ON THE BOTTLENOSE WHALE. [ Dec. 19, 
Fig 2. 
Fig. F 
Fig. 4. 
Figs. 1-4. Outlines of a series of male Bottlenosed Whales, to show the pro- 
gressive development of the head from the youngest (fig. 4) to the 
oldest (fig. 1). 
Fig. 5. Outline of adult female. 
These figures are from sketches by Captain Gray, but are not drawn to scale. 
With regard to their proportions see observations on p. 726. 
