List of Illustrations xi 



FIG. SECT. PAGE 



20. Mercurial Barometer . . . . . 146 99 



21. Atmospheric Refraction . . . . . 150 101 



22. ^Theoretical Circulation of the Atmosphere . . 177 122 



23. *Daily Range of Atmospheric Temperature . 182 126 



24. *Daily Range of Atmospheric Pressure . . 183 127 



25. Sea-breeze . . . . . . . 184 128 



26. Land-breeze . . . . . . . 184 128 



27. Distribution of Atmospheric Temperature in lati- 



tude 187 132 



28. Curves of monthly mean temperature . . . 191 136 



29. *Isobars of Anticyclone 205 147 



30. *Isobars of Cyclone . ...... 207 149 



3 1. *Proportion of land and sea in different latitudes . 214 157 



32. Curves of temperature in river entrances . . . 232 171 



33. *Curves of temperature in the Ocean . . . 235 173 



34. Temperature section of Red Sea and Indian Ocean. 236 175 



35. Circulation of Water by Wind .... 240 178 



36. Section across Atlantic Ocean 20 N. 258 194 



37. Steep slopes 260 195 



38. *Slopes of the Gulf of Guinea ..... 263 197 

 39.* Formation of a Beach . . . . . . 265 199 



40. *Darwin's Theory of Coral Islands . . . . 281 211 



41. Murray's Theory of Coral Islands .... 282 212 



42. Illustration of Rock structures .... 290 218 



43. *Ideal Section of a Volcano . . . . . 295 224 



44.*Earthquake Wave ....... 300 227 



45. Anticline and Syncline ...... 302 230 



46.* Production of thrust-planes in rocks . . . 302 231 



