ESTABLISHMENT OF A PORT, the technical expression for the time that elapses between the moon's transit across the meridian at new or full moon at a given place and the time of high water at that place.
The average depth in the harbour at high water is about 46 ft., with a fall of tide of about 8 ft., the entrance being marked by a lightship and two buoys.
There are wart hogs, baboons (maned and maneless varieties), a tree monkey, jumping shrews, two kinds of squirrel, a small hare, rock rabbits 2 It is probable that a divergent branch leaves the Shebeli some distance above the swamps and that at high water an overflow into the Juba occurs (see Geog.
Its gateway, Elsinore, is a medieval reproduction; other prominent features are the reservoirs, which resemble natural lakes, and a high water tower, from which there is a delightful view.
Nearly all of this vast flood-plain lies below the level of high water in the Mississippi, and, but for the protection afforded by the levees, every considerable rise of its waters would inundate vast areas of fertile and cultivated land.
Above high water mark, and was thus for a long period subject to inundation and epidemics, and only careful drainage rendered the site healthy.
Over the sill at high water of spring tides; the construction of new jetties at the entrance to the tidal basin and at the north wall; the establishment of a coal wharf with hydraulic appliances; a torpedo range in the harbour; the erection of various buildings such as torpedo and gun-mounting stores, electrical shops and numerous subsidiary works; and extensive dredging of the harbour to increase the berthing accommodation for the fleet.
Soil whose temperature remains low, whether from its northerly aspect or from its high water content or other cause, is unsatisfactory, because the germination of seeds and the general life processes of plants cannot go on satisfactorily except at certain temperatures well above freezing-point.
In the Waal ordinary high water is perceptible as far up as Zalt Bommel in Gelderland, in the Lek the maximum limits or ordinary and spring tides are at Vianen and Kuilenburg respectively, in the Ysel above the Katerveer at the junction of the Willemsvaart and past Wyhe midway between Zwolle and Deventer; and in the Maas near Heusden and at Well in Limburg.
This valley extends from the Rhine along the Grift, the Luntersche Beek, and the Eem to the Zuider Zee, and would still offer an outlet in this direction to the Rhine at high water if it were not for the river dikes.