ILLUSTRATIONS 



FIGURE PAGE 



25. Variations in width of pack ice off Queen 



Mary Land 172 



26. Summer and winter temperatures in Antarc- 



tic and Arctic regions 180 



2y. Atmospheric circulation in the southern 

 hemisphere south of the trade wind beU, 

 according to the "Polar front" theory, 

 showing the belt of lows surrounding the 

 Antarctic cyclone 182 



28. Mean monthly temperatures at certain Aus- 



tralian and Antarctic stations . . . 183 



29. The glacial anticyclone 194 



30. Probable isobars at sea level and at 3,000 



meters 196 



31. The biological cycle in the Antarctic . . 205 



32. Emperor penguin and chick; also Adelie 



penguins pondering, ecstatic and tobog- 

 ganing 213 



33. Map of South Georgia showing distribution 



of whale food 225 



34. Map illustrating nomenclature and recent 



annexations 22y 



XI 



