PLATE I 



Magelbaes 

 hCirchipelago. 



.n£ -it^' 



Marshall 



Hawaii CSandwich") 1^ ^^Wii-H 



Central Polynesian Sporac e 



-> 



JTropic of CaTcer_ 



__js [^ 



"^S^ 



^\ 



.\>^ 



Equator 



,^._ TubuaJ or AustCfil It 



-^ 



Tropic of Cajricorn 





MAP OF THE SOUTH PACIFIC 



Showing suggested structure lines. 



Border of South Pacific Basin as defined in ihe Address. 



Hawaiian Cha 



D- Polvnesian Chain 



D- Australasian Cha,in • • 



Gregory's Australasian Festoon .■ Creqor;,'s North Pacific 



D? Micronesian Festoon --^^-.^ D= South Pacif 



D- Pelew Ladrone Pestoon .- , — 



Suess' First Australian Arc i i 1 1— I 



D° Second Australian Arc i.,..,....,.... i--. 



D? Third Australian Arc .t....i|.— 2,— .3.. I 



150 



I40 



ISO 



120 



