Show floating breakwater costly stonework to make a breakwater behind which boats may seek shelter la Is obviated by the use ot of a string of metal pontoons pon which have the effect of quieting a boisterous sea as effectually as a bulkhead of stone or piles the units consist of metel metal structural shapes of an openwork character which are supported by air tilled filled tanks and are chained together in strings of six or eight each end of the string being secured to a substantial pier the action of the waves waives dashing is effectually checked by the open character of the metal work and their force broken so BO that the water behind the barrier is 18 quite still for the purpose of a sate safe harbor |