370 Scientific Intelligence .^.Hydrography. 
greatest alarm ; for it was well known that the following tide 
would necessarily be higher still. The time of flowing arrived : 
until it got to the height of ordinary tides, nothing beyond usual 
was observed in its effects ; but, after this, the water rose, in a 
short time, to a height which exceeded that of the tides of 1808, 
by 6§ inches. During the ebb, the wind abated gradually. It 
is, however, proper to observe, that, on Saturday, the 6th, the 
morning tide rose to the height of ordinary tides. In the mean 
time, the wind rose anew, always from the north-west quarter ; 
and the result was, that the evening tide of the same day rose 
to the same height as on Tuesday evening. Toward night, the 
wind still blew strongly ; and, as the retrograde movement of the 
waters had been but little sensible, a new tide was expected, not 
inferior to the preceding. However, at half past ten o’clock at 
night, the wind slackened, then it passed to the north, and even 
a little to the east, which caused the water, even at flood, to di- 
minish considerably, and it ultimately regained its ordinary 
course. Since then the tides have been regular. It is perhaps 
without example, at least in the annals of meteorology, that du- 
ring six successive tides there should occur five storms, one of 
which attained a height as extraordinary as that mentioned above, 
a height of which there has been no other example in Zealand.”— 
Algem. Konst en Letter-Bode , 1 8th Feb. 1825. 
10. Amsterdam Canal . — It may be said, with justice, that 
Great Britain has outstripped all the other countries of Europe, 
in what regards the undertaking and execution of public works, 
in which utility and grandeur of conception go together. We 
had been accustomed to consider as unique in its kind, both with 
respect to its extent, and its other dimensions, our Caledonian 
Canal, which can carry a large frigate from the North Sea to the 
west coast of Scotland ; but the new Amsterdam Canal, which 
establishes a direct communication between the ocean and this im- 
portant place of commerce, surpasses in depth and breadth 
every thing of the same nature existing in Great Britain. It 
appears that a frigate of 44 guns has already passed along its 
whole extent, and it is even capable of receiving vessels of 80 
guns. The projected Portsmouth Canal, which is intended to 
receive vessels of the line, would rival that of Amsterdam as to 
