INDEX. 



409 



Truk Archipelago — Continued 

 ■ Elevatiou of, 359 



Friuging reef belts of, 358 



Great encircling reef of, 3,53 



Height of islands of, 355 



Islaiiils on outer margin of, 354 



Largest Caroline atoll, 353 



Mangroves in, 356 



Mount Ton Azan at, 355 



Muddy water in, 359 



Native canoes of, 362 



Northern pass of, 360 



Northwest face of, 360 



Original land masses of, 358 



Range of corals in, 359 



Shoals and patches in lagoon of, 358 



Submarine erosion of, 358 



Summits of, 358 



Vegetation of, 359, 361 



Volcanic islands of, 354 



Volcanic islets of, 356 



Volcanic mud in, 356 

 Tsis Island, 353, 357 

 Tuanae Island, 165 

 Tuanake, 90 

 Tuaura Valley, 148 

 Tufaka, 188, 191 

 Tugulu Island, 341 

 Tulatik, 342 

 Tupua Island, 163 

 Tupua Iti, 163 

 Tutataroa Pass, 143 

 Tuvutha, 206 

 Two Groups, 111 



Ua Huka, 3 

 Ua pu, 3 



Udot, 353, 355, 357 

 Uiha, 197 

 Ujelang, 273 

 Ulalu, 355 

 Ulul Island, 364 

 Uluthi Islands, 331 

 Umol, 354, 356 

 Unalik Island, 364 

 Uneyeute, 364 

 Uola Island, 355 



Beaches of, 355 



Corals at, 355 



Height of, 355 

 Uoleva, 196 

 Utiroa, 238 

 Utuofai Valley, 146 



Vaeio Bay, 3 



Vaionifa Pass, 145 

 Vaiorea Island, 158 

 Vaitia Kiver, 145 

 Vaitoto River, 145 

 Vavau, 197 



Canons at, 200 



Capt. Field on, 200 



Caves at, 200 



Chart of, 200 



Denudation of, 198, 200, 201 



Depth of bank of, 203 



Fertile soil of, 201 



Fossils at, 202 



Height of, 201 



High land of, 201 



Slope of plateau of, 203 



Terraces of, 198 



Vegetation of, 201 



Vertical cliffs of, 198 

 Vavau Plateau, 175 



Denudation and erosion of, 177 

 Velitoa, 189 

 Venus, Point, 144, 146, 150, 153. 



Barrier reef at, 144 



Leclerc and Benaze' on, 154 



Marks of Wilkes at, 154, 155 



Volcanic sand beach at, 146 



Walu Bay, 205 

 Wangava, 205, 206 

 West Ava iti, 142 

 West Faiu, 364 

 West Indian Group, 



Absence of platforms in, 6 

 Wichman, A., 362 



On geology of Pelew Islands, 362 



On Ponapi basalt, 343 

 Wickham Reef, 195 

 Wilkes, Capt., 9 



On coral reefs, 9 



On elevated limestones, 10 



On Kauehi, 74 



On Makatea, 10 



On method of surveying atolls, 10 



On Paumotus, 11 



On sea wall of Rangiroa, 10 



Sketch of Matahiva, 10, 55 



Sketch of Rangiroa, 13 



Sketch of Tikahau, 13 



Sounding in Raraka, 9 



Soundings off Clermont-tonnerre, 9 

 , Wolea Island, 332 

 Wotje, 315 



Color of waterin, 315 



Corals in lagoon of, 318 



