6s 2 
Mr. mann’s 'Treat if e 
Defcent towards the fea at Nieuport on the Coajl of 
Flanders. 
Feet, 
Total declivity of the Lys from Commines to Ghent, 
46 miles, - - - 61 
Declivity of the canal from Ghent to Bruges, when 
the iluices are ihut, - - . 1 
Difference of height of the water in the aforefaid 
canal above that in the canal from Bruges to 
Offend, which two communicate together by 
iluices, - - - 8 
Declivity from Bruges to Plafchendahl where the 
canal of Nieuport joins that of Offend, - 6 
Total declivity from Plafchendahl to Nieuport, in- 
cluding the difference of furfaces in two interme- 
diate iluices, - 8 
Total declivity, all one way, from Commines to 
Nieuport, about 95 miles, - - 84 
Afcent 
