Traiisaclioiis Society Wiral .Irrliilrds and Marine Ihujinccrs, P'ot. jj, ign). 



Plate S7 



To ilhislratc /^af^cr 011 " I .aiiiichiiuj nf Sliil>s in /\csfrictct/ Waters," by Captain J J. M. Clcasoii, 

 Const ruction Corps. IL S. N.. Member, and Lieutenant Commander H. E. Saunders, 

 Construction L\n-ps, ['. S. N., Member. 



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