CONTENTS 



Page 



Introduction *■ 



Charles H. Gilbert cruise 17 ! 



Itinerary 1 



Primary missions 1 



Secondary missions 2 



Form and location of field data 3 



Hugh M. Smith cruise 27 3 



Itinerary 3 



Primary missions 3 



Secondary missions 4 



Form and location of field data 4 



Hugh M. Smith cruise 30 4 



Laboratory methods and techniques 5 



Literature cited 5 



Charles H. Gilbert cruise 17, figures 1-46 . 7 



Hugh M. Smith cruise 27, figures 47-104 50 



Hugh M. Smith cruise 30, figures 105-144 93 



Tabulated data, Charles H. Gilbert cruise 17 133 



Tabulated data, Hugh M. Smith cruise 27 189 



