CHAP. VI.] DEEP-SEA DREDGING, 253 



and D might represent respectively tlie relative posi- 



FjG. 00.— Diaj^^iaij] oi Llie luliiUve position of the Vessel, tliu Weii^ht-s, aud the Dredge, iu 

 diedj^ing iu deeij water. 



tions of the vessel, the Aveidit attached 500 fathoms 



