A Treatise on the Principles and Practice of Harbour Engineering

acetylene action angle apparatus axis barges blockwork bottom breakwater buoyancy buoys burner caisson centre centre of buoyancy channel coast compressed concrete blocks considerable consists construction course crane cubic foot cubic yards curve cylinder deposited depth diameter distance dredger dredging effect Engineering entrance estuary face feet 6 inches floating foot foundation groynes harbour high water Holyhead hopper barges horizontal Inst jetties length light Lighthouse lightships load low water machine material mattresses means metacentric height metres miles mole moorings mould mound navigable necessary North operations Peterhead pierhead piers piles pontoon port Portland cement position pressure Proc quarry quay range river rock rubble sand screw sextant shelter ships shore shown in fig side slope square inch staging steel stone structure Sulina superstructure surface tidal tide timber tons Trinity House vertical vessels wall wave weight width Zeebrugge