Inthefollowing pages Ihave donemy best togive a condensed statement, 1st, Ofthefactsandprinciples which regulate thedesign andconstruction ofLighthouse Towers in exposed situations.
Thomas Stevenson[1]
Allthelater improvements have been fully described and illustrated, soastoenable theengineer toselect from thedifferent designs, such plans aswill best suitthespecial peculiarities ofanyline ofcoast toilluminate.
Thomas Stevenson[1]
Alllight islosttothesailor which iseither allowed todiverge above theliorizon, andtherefore above thesea, orsofarbelow itastofallshort ofthesea.
Unknown[1]
ASaberly radiant isindeed thesolecause ofthedifficulty thathas tobeencountered inallattemj)ts todeal accurately with theproper distribution ofthelight…
Unknown[1]
Every improvement oflighthouse apparatus may heresolved simply intoamethod ofpreventing lossoflight
Unknown[1]
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