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JVb! 



Machine, / lic>f. 



TunuttSyO. Cor. + yf A» 

 or lead r^\" J[. .1 



Bottom juf£>\ o-k . *-r- 

 Hull uin te.mftvvidu.lv. 

 JVo. TltrrmoitK t< r \i B 

 Corrected t empera t tire 

 Air k£ Surf otic 



L2T 



9*4 *h 



7/ 



0rrff> ] I 



n 

 4 



SOUNDING WIRE. 





DREDGE ROPE. 





UP, 



i i ■ 



ik'iwn. 



vv. 















Q 





































inn 



700 





c 







800 











(>tX> 











1 000 











1 1 1 M 1 



1 1 '.IV' 1 











1 It II . 











I. {00 











(J... 











1500 





















rjoo 











1800 











l CjK i ' 











2lXX> 











' 1 











2200 











-.)' " 











1400 







