\ 



Bott-orn temperature ^ 



^0. of thentionbeter yjJ2 4? ^ Oar* O 



Corrected isnvpf^ratttirti 



Air ^0 Stirfaoc /^V DHjl> 



./^SOUNDING WIRE. 







tCfJU<». 



tuo 



7UU 



boo 



lOQO 



191x1 



JOUU 



DREDGE ROPE 



DOWN. 



I Ml 



