*^5SJ** 



^""-- ■— ■-— -._ 



Figure 7. Field operations at Surf, California, June 1967. 

 In foreground are mobile "detector vehicle ("ball") and 

 LARC-V with instrument shelter. In background is DUKW 

 vehicle used in support of operations. 



Figure 8. Detector vehicle with part of bearing 

 surface removed to permit servicing. Shown 

 are the detector housing and the ports for 

 the detector crystals (not yet in place). 



16 



