THEORETICAL DISCUSSION. 



26] 



Figure 81 shows the sea-level pressure. The greater part of the isobars shown are based 

 on actual observations and may be taken as correct, these have been represented by full 



Fig. 81. Probable Antarctic pressure, sea-level. 



lines. The dotted lines represent the hypothetical pressure distribution, over regions from which 

 we have no observations. The latter are confined to the area at sea-level between the Ross 

 Sea and Graham Land where an anticyclone is shown in accordance with our conclusion that 

 the sea-level pressure increases towards the Pole. No attempt has been made to indicate the 

 sea-level pressure over the region occupied by high land, for such a result would have no 



It will be noticed that in its main features this diagram does not depart largely from 

 the corresponding one prepared by Meinardus and reproduced in figure 76. We have in each 

 the bending southwards of the isobars over the Ross and Weddel Seas and the high pressure 

 over the central parts of the area. 



