FIGURE 3.3 

 BATHYSCAPHE 



The Navy's Bathyscaphe Triest e 

 set an alltime depth record 

 off the Island of G'jpih in the 

 Pacific on January 23, 1960, 

 when it plunged 35,800 feet to 

 the bottom of the Marianas 

 Trench. This dive, one of a. 

 series in the occanographic 

 programs of the Office of Naval 

 Research and the Navy Electronics 

 Laboratory (San Diego), was the 

 result of two years of planning. 

 The objectives of Project Nekton 

 were to gather basic informs tion 

 about the penetration of sunlight, 

 linderwater visibility, and trans- 

 mission of manmade sounds, and to 

 conduct marine geological stvdies 

 of the trench. 



INSIDE THE OBSERVATION GONDOLA, DR. ANDREAS B. RECHNITZER AND 

 LT. DON WALSH CHECK INSTRIM;NTS. 



14 



