50 Onthe Heights of the Tides of the Atlantic Coast. 
These numbers may be extended beyond the turn of Cape Race, _ 
where the coast trends to the west of north, by further results — 
of Admiral Bayfield, though the remarks which he makes show ~ 
them to be only approximate. Thus two stations on the coast — 
of Labrador, St. Lewis Bay in latitude 52° 19’ and longitude 
55° 87’, and Henley Island in latitude 52° 00’ and longitude — 
55° 53’, give each for the mean of the height of spring and neap — 
tides 2°3 feet. St. John’s, Newfoundland, gives 5:0 feet. Tre- 
8 feet. 
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Nantucket Island. Next is a less regular regimen requiring & : 
more detailed examinati 
cates Cape Hatteras, and not the inlet, which was the tidal station, | 
as the point of least height. The physical cause of this phenome | 
non is well understood if it has not yet been reduced to measure. | 
The next curve shows us plainly the middle bay, having Hat | 
teras for its southwestern cape, and Smith’s Point or Weeweed@® | 
