Smithsonian Report. 1964.— Spiess and Maxwell 



PLATE 2 



1. Two PGR (precision graph recorder) records taken from Athuitis II, showing point 

 "delta." Because of the size and shape of this contact an accelerated search for the 

 Thresher was made in this area. The first photographs of debris were obtained about 

 I kilometer to the north. (Courtesy Woods Hole Oceanographic Institution.) 



2. Photograph of debris from the Thresher, taken by the Xavy Elcctnniics Laboratory 

 bathyscaphe Trieste, on August 24, 1963, at a depth of 2,600 meters. (Courtesy U.S. 

 Navy.) 



