788 
-l00- 
RESEARCH VESSEL ANTON DOHRN TO ASTERIAS CARRYING ad 
800° FROM CHARGE PIEZOELECTRIC RECORDING EQUIPT 
ELECTRIC ps 
GABLES’ 
FIG. 29c. MODIFICATION C 
LEGEND 
B COMPOSITE GAUGE BLOCK [SEE FIG. 3B, AND SEC 13(a)] 
C BALL-ORUSHER GAUGE, SUSPENDED FREE, FACE DOWN 
CH CHARGE 
D DIAPHRAGM GAUGES 
H, HILLIAR GAUGE SUSPENDED FREE, FACE DOWN 
Hp 2 IMPROVED HILLIAR GAUGES 
M, MODUGNO GAUGE, SUSPENDED FREE,FACE DOWN 
M, HARTMANN MOMENTUM GAUGES 
P PIEZOELECTRIC GAUGES 
P3 PILOT GAUGE FOR TRIPPING 
PS PRESSURE SWITCH (FOR TRIPPING) 
W 200-LB WEIGHTS “i 
FIG. 29. "ONE-DIMENSIONAL" FORE- AND-AFT RIG. 
