+------------+--------------------+-----------------+ | Heights in | Distances in | Distances in | | Feet. | Statute or English | Geographical or | | | Miles. | Nautical Miles. | +------------+--------------------+-----------------+ | 5 | 2·958 | 2·565 | | 10 | 4·184 | 3·628 | | 15 | 5·123 | 4·443 | | 20 | 5·916 | 5·130 | | 25 | 6·614 | 5·736 | | 30 | 7·245 | 6·283 | | 35 | 7·826 | 6·787 | | 40 | 8·366 | 7·255 | | 45 | 8·874 | 7·696 | | 50 | 9·354 | 8·112 | | 55 | 9·811 | 8·509 | | 60 | 10·246 | 8·886 | | 65 | 10·665 | 9·249 | | 70 | 11·067 | 9·598 | | 75 | 11·456 | 9·935 | | 80 | 11·832 | 10·260 | | 85 | 12·196 | 10·570 | | 90 | 12·549 | 10·880 | | 95 | 12·893 | 11·180 | | 100 | 13·228 | 11·470 | | 110 | 13·874 | 12·030 | | 120 | 14·490 | 12·560 | | 130 | 15·083 | 13·080 | | 140 | 15·652 | 13·570 | | 150 | 16·201 | 14·220 | | 200 | 18·708 | 16·220 | | 250 | 20·916 | 18·14 | | 300 | 22·912 | 19·87 | | 350 | 24·748 | 21·46 | | 400 | 26·457 | 22·94 | | 450 | 28·062 | 24·30 | | 500 | 29·580 | 25·65 | | 550 | 31·024 | 26·90 | | 600 | 32·403 | 28·10 | | 650 | 33·726 | 29·25 | | 700 | 35·000 | 30·28 | | 800 | 37·416 | 32·45 | | 900 | 39·836 | 34·54 | | 1,000 | 41·833 | 36·28 | +------------+--------------------+-----------------+ [Illustration: _By permission of the “Syren and Shipping.”_ LOOKING UP THE LANTERN OF THE NEEDLES LIGHTHOUSE.]