Van Nostrand's eclectic engineering magazine (1869)
[New York : D. Van Nostrand] · leaf 113
at an angle of 45 dogs, with the question is : How is this scouring power coast, and for every 3 ft. of additional to be obtained ? By another breakwater length there would be about 2 ft. of placed in a slanting direction, say at an " ofhng ;" thus any heavy material which angle of 60 deg. with the… … the Nile turning the end of the breakwat- Sketch of proposed new breakwaters shown by dotted er, and thus closing up the entrance to lines- The arrows show direction of currents. Port Said '? — and this I believe it would, By such an arrangement I believe a though some silt would still find its way…
Engineering
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