■"1, 



\'n. 



luUe 



Mm-IUnr. ' llri'l. 



7>/ /•//.■> i'nr. I 



lUUlnm tempi'rtUu'rr. ' ' — 

 vWv. of Thannonutitir 

 Corrrt'trtT ir uipi'vatwrii 

 Jir ^ Sutrftim 

 Tniufl or dredge or ian^irs 



J)LpLll 



Cur, - ^ 

 Drf/r. 



SOUNDING WIRE. 





DREDGE ROPE. 





UP. 









"y rj ^ C r» 











(J 



200 

 300 































.s...» 











i>Of« 











1 4 [1 1 Jl' 1 











1 Kifi 











IJOm 











IJOO 











1 .yii> 











ISCiO 











l6uo 

 1700 











l8r>i 











KJOO 





















2 1 ' Jfj 



















i 



2400 







