Mr. 



.Vo ^ Ijtlti 



-mU^ rear! ^ 

 Bolioni '-'I _ y 

 JBoUotti Unipcraiu>fo 

 J^u, of Thvvnwtmtcr ^ 

 Corrected temperature 

 Air u. i' SiLrfacc 

 Trrtwl or dr^djfe or tan^/r v 



Hi i'l.. 



JJcfjth - . 



Ihifi. 



SOUNDINQ WIRE* 



THJtN«. 



40U 

 500 



800 

 r 100 



IJOO 



1400 

 1500 

 i(kx> 

 fjoo 

 liioo 

 1900 



2000 

 ftl09 



2300 



DREDGE ROPE. 



