i$t of Jllu^trafion^. 



CHARTS. 



PAGE 



Plate 1. — The Northern and Southern Hemispheres, with Track of H.M.S. 



"Challenger," ... . . . . n 



^ Plate 2. — Contour-Chart of the Bottom of the Ocean, ... 14 



f Plate 3. — Contour-Chart of the Bottom of the Atlantic, . . • 1 7 



r Plate 4. — Surface-Currents and Surface-Temperatures, . . 27 



V Plate 4a. — Lines of Equal Barometric Pressure (Isobars) for July, August, 



September, •. . . . . . .46 



V Plate 5. — Current Chart of the Ocean, . . . . . 53 



OCEANIC SECTIONS. 



. m PAGB 



/Approximate Section through the Atlantic, . . Frontispiece. 



Plate 6. — From TenerifTe to Sombrero, .... 60 



Plate 7. — From St. Thomas to Halifax, . . . .64 



Plate 8. — From Cape May to Madeira, . . . . 70 



Plate 9. — From Madeira to Tristan d'Acunha, . . . . 76 



Plate 10. — From Cape Palmas to Cape S. Roque and Tristan d'Acunha, 82 

 Plate 11. — From the Falkland Islands to the Cape of Good Hope, . 84 



a/Plate 12. — From the Cape of Good Hope to Cape Otway, . . 90 



Plate 13. — From Lat. 50 S. to the Antarctic Circle, . . .96 



Plate 14. — From Port Jackson to Cook Strait and the Friendly Islands, 98 



Plate 15. — From the Fiji Islands to Torres Strait, . . .102 



Plate 16. — From Torres Strait to Hong-kong and to the Admiralty Islands, 106 

 Plate 17.— From the Admiralty Islands to Japan, . . . .no 



Plate 18.— From Yokohama to Station 253, . . . .114 



Plate 19.— From Station 253 to Station 288, . . . .118 



Plate 20.— From Station 288 to the Coast of Chile, . . 122 



