LRichard's ..Comprehensive geography of the Chinese empire and dependencies ..translated into English, revised and enlarged . Shantung Point, 14 hours afterwards they reach the Miaotao ^ %islands, and 20 hours later penetrate to the extremity of the Gulf of Chihli. Islands and promontories, around which the tides have to turn, greatly retardtheir progress. Tides are of gi-eat importance for navigation. Owing to them many rivers becomenavigable to a considerable distance from their mouth, shoals and bars can be crossed,aud large boats maj- enter ports, which would otherwise be inaccessible. It


LRichard's ..Comprehensive geography of the Chinese empire and dependencies ..translated into English, revised and enlarged . Shantung Point, 14 hours afterwards they reach the Miaotao ^ %islands, and 20 hours later penetrate to the extremity of the Gulf of Chihli. Islands and promontories, around which the tides have to turn, greatly retardtheir progress. Tides are of gi-eat importance for navigation. Owing to them many rivers becomenavigable to a considerable distance from their mouth, shoals and bars can be crossed,aud large boats maj- enter ports, which would otherwise be inaccessible. It is on the coast of Fokien, as stated above, that the tides of the China seasattain their greatest height, reaching about 17è feet ; South of the Formosa channel,they reach even 23 feet, helped by favourable winds in certain extraordinary circums-tances. A rather remarkable phenomenon occurs on the coast of Tongking, where thereis but one tide dailj-. A dissimilar curious modification is noticed in England, at South-ampton, Poole and Weymouth, where 2 tides occur in twelve hours. 250 SECTION IV. THE COAST-LINE OF O o Oh O ^J H THE COAST OF CHIHLI. 251 S. The coast of Chihli H ^ The coast of Chihli (|[ ^ is washed by the Poh-hai ^ ^.Low and frozen during part of the Winter^ it would have littleimportance but for its proximity to Peking 4fc ^^ ^i^d for thePeh-ho Q fp], which flows into the gulf of Chihli. Tlie Poli-liai f^ ^. — Poh-hai signifies annofthe sea. It forms in fact a kind of small sea to the W. of the Leaotung^ ^ promontory (called also Laotieh-shan ;^ ||g jlj), and ofthe Miaotao ^ ^j islands. The strait of Chihli separates theLeaotung promontory from the Miaotao archipelago. Its greatestdepth is 40 fathoms. The Poh-hai is not so deep, and attainsat most 24 fathoms. Along the low coast, it is necessary tokeep at a distance of 10 miles, to find a depth of from 16 to 20feet, unless a river running into the sea opens up a deeperchannel through the sands. The pri


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