CONTENTS 



Introduction page 115 



I. Appearance at the surface 116 



Breaking surface to breathe 116 



Breaking surface without breathing 118 



Swimming 118 



Frequency of blowing 118 



The response of whales to marking , 122 



Feeding 124 



Gambols and eccentricities of behaviour 126 



II. Movements beneath the surface 127 



Breaking surface 127 



The head, dorsal fin and caudal peduncle 129 



III. Comparison with earlier accounts 131 



Respiratory rhythm 132 



Feeding 133 



Gambols 133 



Breeding habits 133 



Intercommunication between whales 134 



Asymmetrical pigmentation of Fin whales 135 



Summary and Conclusions 135 



References 135 



Appendix. Tables 3 and 4 137 



Plate XXXIII following page 142 



