xviii LIST 'OF ILLUSTRATIONS 



PAGE 

 A FROZEN WATERFALL IN KEYSTONE CANON 432 



MOUNTAINS IN " THE NARROWS," TEN MILES SOUTH OF VALDEZ . 433 



ENTRANCE TO KEYSTONE CANON 434 



ON THE TRAIL . . . . . . . . ... . 435 



MAPS 



MAP .... ... To face p. 254 



MAP SHOWING THE ROUTE OF THE EXPEDITION ... ,, 436 

 CURVE SHOWING THE SOUNDINGS ON THE EDGE OF THE 



CONTINENTAL SHELF ,, 439 



