Frontispiece: An extremely large manganese nodule inadvertently retrieved by the USGC PONTCHARTRAIN 

 (WHEC-70) during a deep Nansen cast on Ocean Station NOVEMBER in 3749 meters of water in September 

 1967. This specimen, weighing approximately 240 Kg., was entangled in the oceanographic cable which was 

 accidentally laid on the bottom. Scientists from the Scripps Institution of Oceanography subsequently identified 

 the rock as probably the largest manganese nodule ever found. 



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