Fig=1939-035.  <a href=../..>Home</a> - <a href=b036.html>Next</a>
<p><img src=../big/035.jpg><p>
(Dynamite source,
drilled/cased shot holes,
Drill rigs on barges,
S-10 seismometers on the bottom,
triangulation surverying)
<p>See <a href= m035.html>smaller picture.</a>