TABLE OF CONTENTS. 



Page. 



Introduction 1 



Plan of survey 2 



Track \ 3 



Depths 3 



Gradients 5 



Temperatures 5 



Air and surface water 5 



Bottom temperatures 7 



Character of bottom ^ 9 



Deposits 10 



Eed clay 10 



Globigerina ooze 11 



Diatom ooze 12 



Eadiolarian ooze 13 



Volcanic mud 13 



Blue mud 13 



(jxreen mud 14 



Record of the detailed examination of selected specimens of deposits from 



stations on the outward voyage of the Nero 15 



( A ) Honolulu to Midway Islands 15 



(B) Midway Islands to Guam 17 



(C) Guam to Luzon 21 



(D) Guam to Yokohama, Japan 24 



Abstract of the official record of soundings 27 



Hawaiian Islands to Midway Islands 27 



Midway Islands to Guam 30 



Guam to Luzon 37 



Luzon to Guam . , 40 



Guam to Yokohama 42 



Yokohama to Guam 46 



Guam to Midway Islands 50 



Midway Islands to Hawaiian Islands 57 



Explanation of plates ; 61 



V 



