PLATE 7 



21. 1 he Campbe'il grab has emptied its contents into a rectangular 

 tub which easily accommodates its load; the tub is mounted 

 on a castored base to permit moving across the deck of the 

 Velero If. 



22. The mud in the tub is measured and two half-pint samples are 

 removed for future geological study; the grab is cleaned and 

 readied for another sample. 



23. The screen assembly seen from the top, showing the six shower- 

 heads and the sorting trays; a canvas bag is in place over 

 the screen base, to catch smaller bits that are then washed 

 into jars for preservation. 



24. The large Dragger winch on the working deck of the I'clero 

 IF, showing the drum within its housing and the extending 

 cable seen across the lower left of the picture. 



