The Encyclopedia britannica; a dictionary of arts, sciences, and general literatureWith new maps, and original American articles by eminent writersWith American revisions and additions, bringing each volume up to date . o attempt entirely to explain the tidesof the Atlantic. He sums up the discnssion of the chart by saying :—Upon the whole, therefore, we are driven to the conclusionthat we cannot at all explain the cause of the form of the cotidallines in the ocean, so far as they have been traced with any prob-ability. And, supposing us to know with tolerable certainty thosecorresponding to t
The Encyclopedia britannica; a dictionary of arts, sciences, and general literatureWith new maps, and original American articles by eminent writersWith American revisions and additions, bringing each volume up to date . o attempt entirely to explain the tidesof the Atlantic. He sums up the discnssion of the chart by saying :—Upon the whole, therefore, we are driven to the conclusionthat we cannot at all explain the cause of the form of the cotidallines in the ocean, so far as they have been traced with any prob-ability. And, supposing us to know with tolerable certainty thosecorresponding to the semi-diurnal tide, we cannot at all predictthose which should hold for the diurnal tide. * § 42. Cotidal Lines of the British Seas, Fig. 7 shows the cotidal lines in the seas surrounding the BritishIslanda Here the lines refer to full moon and change of moonand not to spnng tide. The small figures along different parts ofthe coast deuote the extreme range of the tide in yards. This6gure is from the same source as the preceding one, and we againreproduce a portion of Air>8 remarks. The tides iii the English Channel claim notice as having beenthe subject of careful examination by many persons, English and. Fio. 7.—CotiUal Imes of British seas. French. It appears that in the upper part of the Channel thewater flows up tne Channel nearly three hours after high water andruns dowD nearly three hours after low water (this continuanreof the current after high water, if it last three hours, is called bysailors lide-and-half-lide ; if it last one hour and a half, it is ). On the English side of the Channel, especi-ally opposite the entrance of bays, the directions of the currentsturn in twelve hours in the same direction as the hands of a watch ;on the French side they turn in the opposite direction. This isentirely in conformity with theory. The same laws are recognizedas holding, in the British [Bristol] Channel, and in the Germanor North Sea near th
Size: 1477px × 1691px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, bookidencyclopedia, bookyear1892
