INDEX. 325 



Scott, Captain R. F. : viii ; ascents to, ami observatious made on, the plateau, 1, 38, lll-lii 

 214, 215, 293, 294 ; joiiraey to the western mountains, 9 ; low temperatures on the southern 

 journey, 29, 30 ; remarks on the journey to Cape Crozier, 25 ; storm at the foot of the 

 Beardmorc Glacier, 28, 39 ; temperature measurements on the Discovery Expedition, 21 ; use 

 of Assmanu's psychrometer, 17; voyage along the Barrier in 1902, 1, 2; wind vane at Corner 

 Camp, 112. 



Shackleton, Sir E. : temperatures at Cape Royds, 79 ; visit to the plateau, 1, 141, 14(j. 



Shaw, StR N. ; disappearance of clouds due to radiation, 153 ; gustiness, 121. 



Sledgixg journeys : 8 ; method of measuring temperatures on, 17 ; use of minimum thermometers 

 on, 19, 20. 



Sledging thermometers, 17. 



Snowfall : 159 ; frequency of, 161. 



Solar radiation : during September to March, 63 ; amplitude of daily variation of temj)erature 

 and, 64. 



Southerly winds : frequency of, 113 ; mean velocity of, 113 ; temperature during, 46 ; total 

 motion of, 113 ; weather associated with, 11. 



Southern Ocean : pressure conditions over, 246. 



South Pole : height of, 294 ; routes from Cape Evans to, 6. 



Structure of the wind, 115. 



Squalls, 125. 



Sun : periods above and below horizon, 54. 



Surges : see • pressure surges '. 



Taylor, Q. T. : v ; journeys to the western mountains, 10. 



Te'MPERAiURe(s) : chapter II, 15 ; accuracy of the observations, 16 ; Arctic and Antarctic, com- 

 pared, 40, 93 ; Cape Adare, 33 ; Cape Armitage, 21, 22 ; Cape Crozier, 25 ; Framheim, 32 ; 

 geographical distribution of, at sea-level, 21 ; gustine.ss and, 123 ; in.struments and methods, 

 15 ; interdiurnal varial)ility of, 77 ; lowest recorded in the Antarctic (— 76°F.), 8, 24 ; mean 

 annual, 91 ; mean of the Antarctic, 92 ; method of ob.serving at Cape Evans, 16 ; method of 

 observing on sledging journeys, 17 ; pressure distribution and, 173, 237 ; on the South Polar 

 Plateau, 38; wind and, 44, 83. 



Temperature, annual variation : 83 ; Arctic and Antarctic, compared, 84 ; explained, 88 ; 

 insolation and, 85 ; land and sea climates and, 87 ; at Cape Adare, 83 ; at Framheim, 83 

 in McMurdo Sound, 81 ; on tlip North Barrier, 32, 83 ; at 78° N., 85. 



Temperature on the Barrier : daily variation of, 55 ; method of reducing, 19, 20, 21 ; mean 

 monthly, 32 ; spring, 26 ; summer, 26 ; winter, 21. 



Temperature, daily variation : 52 ; at Cape Adare, 73 ; Fourier coefficients, 72 ; on the Fram 

 drift, 54, 59, 70 ; at Framheim, 57, 60 ; ' Fram ' type of, 59 ; at the Gauss Station, 59 ; mean 

 range of, 74 ; mean reduced range of, 74 ; in McMurdo Sound, 54 ; ' McMurdo ' type of, 

 60 ; at Snow Hill, 60 ; state of surface and, 58, 64, 65 ; solar radiation and, 64. 



Temperature, daily variation, May, June and July : 66 ; marked excess of temperature at 

 4 A.M., 69 ; excess of temperature from 9 a.m. to 7 p.m., 68. 



Temperature, daily variation, September to March : 54 ; explanation of, 63 ; summary and 

 conclu.sions, 66. 



Temperature differences : Barrier-Cape Evans, 31 ; Hut Point-Cape Evans, 91 ; January to July 

 over Antarctic, 300. 



Temperature inversion : 41 ; see also ' cold surface layer of air.' 



Temperatures, maximum and minimum : mean monthly values of, 74 ; corrections to convert to 

 true mean, 79 ; correlation with reduced range, 74. 



Temperature, mean monthly : data available, 79-81 ; departures from average in McMurdo 

 Sound, 82; at Cape Adare, 83; at Framheim, 83; in McMurdo. Sound, 81: on the North 

 Barrier, 3%, 83 ; at 78° N., 85. 



Temperature, non-periodic changes : 73 ; cold surface layer and, 76 ; comparison between Cape 

 Evans, Cape Adare and Framheim, 77 ; maximum and minimum temperatures and, 73. 



