264 



TIDES IN THE 



The parallax of the moon will assuredly indicate the height of the 

 tides all over the v/orld ; this general cause, therefore, must be applicable 

 at all places. 



The following abstract will be useful, as conveying a general sum- 

 mary of the tides, of the Hoogly. 



From the point of lowest low water in the dry season, to that of the 

 highest high water in the freshes, is twenty feet ten inches. 



The greatest mean rise of tide from low to high water mark, takes 

 place in March, April, and May, and is fifteen feet ten inches. 



The greatest mean rise of tide from low, to high water mark, in the 

 freshes, is ten feet. 



The smallest mean rise of tide takes place in the freshes, and is at 

 neap tides, only three feet six inches. 



The smallest mean rise of the tide in the dry season, neap tides, is 

 four feet. 



From the lowest fall of the river, to high water mark, neap tides, in 

 February, is eight feet. 



From the lowest fall of the river to low water, in the freshes (neap 

 tides,) is twelve feet.* 



The 



* During the inundation in September, 1823, the low wate^ stood at eighteen feet six inches, 

 the tide having ebbed only fitteen inches on that day. The difference between this low water, and 

 the high water (neap tides in February ; viz. eight feet,) is ten feet six inches ! ! 



