chap, vi.] DEEP-SEA DREDGING. 253 



and d might represent respectively the relative posi- 



■ , - , /' * "'' ' ■ , ' 



Fig. 50. — Diagram of the relative position of the Vessel, the Weights, and the Dredge, in 

 dredging in deep water. 



tions of the vessel, the weight attached 500 fathoms 



