PLATE 3 



5." The Hayward orange-peel-grab, modified with canvas sleeve, 

 hooked up for descent to the bottom, sho\vn on the rear working 

 deck of the I'elero IV. 



6. Hoisted through the A-frame with the aid of air compression, 

 showing position of the claws at greatest extension. 



7. Turned to show arrangement of canvas flaps which permit 

 escape of air or water, but prevent escape of solid particles. 



8. About to enter the water over the point selected for investiga- 

 tion, showing the hook-up mechanism with the end of the cable. 



^ The following photographs were made hy Roy V. George, staff photographer 

 of the Allan Hancock Foundation, except No. 15, which was made by Floyd E. 

 Durham. 



