Sailing Directions for the English Channel: Including a General Description of the South Coasts of England and Ireland, and a Detailed Account of the Channel Islands

Hydrographic Office, Admiralty, 1835 - 234 Seiten

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Seite 161 - From what has been said in the preceding pages, it is evident that important limestones may be formed in various ways, which, however, are chemically the same. Calcium carbonate, withdrawn from fresh or salt water, is laid down under diverse conditions, yielding masses which resemble one another only in composition.
Seite 43 - Throughout Christchurch Bay the land is generally low, and still more so in the vicinity of Hurst Castle, the base of which is very little elevated above the level of the sea. From thence the western end of the Isle of Wight, the...
Seite 170 - Gabriel will appear on with Leamcon signal-tower and castle to the north-eastward, and the Brow Head (on which there is also a signal-tower) will appear to close in with the Alderman Head to the westward. The harbour will now begin to unfold itself. The Revenue officers' houses, on the northern shore, will be first seen, and, ultimately, Coghlan's white look-out tower on the southern side.
Seite 171 - Granny island, which shows at low-water great spring tides. The long eastern mark for this rock is Leamcon tower, just open to the southward of the bluff point of Rock island. Vessels, therefore, of any burthen, in the event of loss of anchors, or otherwise in distress, may boldly run quite up the haven until they take the ground, provided they keep in the middle of the channel. Pilots are always ready, and will come off in any weather when signalled.
Seite 27 - The land between the Lizard and the Start is, generally speaking, moderately high, and, being for the most part double, exhibits a great variety of elevation to a vessel in the offing as she varies her position. It also contains many deep openings between Helford and Looe, which, at a distance, seem to destroy the connexion.
Seite 201 - Though Dunmore Pier affords a secure anchorage from westerly gales, as well as from the prodigious sea which rolls along the south coast of Ireland ; yet it is...
Seite 117 - On its north-eastern side there is a tract of water in which a perpetual eddy or slack tide exists, during the six hours that the stream occupies in running to the north-eastward in the Great Russel and the Deroute channels, extending nearly 3 miles from the land, and gradually contracting in breadth as it increases its distance from the shore. The marks for its north-western and south-eastern limits are, the...
Seite 23 - SE ; these latter send in a very heavy breaking sea, against which few vessels could ride with any prospect of success were it not for the powerful undertow, the resistance of which, as in Torbay, increases with the strength and duration of the wind, thus enabling vessels to ride easy.
Seite 132 - WSW ; and the last 2 hours, that is, from low water till half-flood, sets SW ; and the contrary for the first and last 3J hours of the north-eastern stream ; which between half-flood and high water, sets very strongly round Cape La Hague.
Seite 163 - With southerly, southwesterly, or westerly winds, it is equally imprudent to lay a vessel's head southeastward between half flood and high water, and, for a similar reason, both wind and tide then drive her northeastward. With easterly winds the islands become a weather shore, and may consequently be made free with as occasion may require: and, by attention to the set of the streams, a position taken before dark may be preserved within 3 or 4 miles if a vessel can carry close-reefed topsails and...

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