aho'ce and below London Brtdgel SS 



From these observations we learn, that the relative time of 

 the flood at these places, from a mean of the two days, is, 



H. M. 



5 12| 



4 48| 



4 40 



4 27i 



Time of flowing at Woolwich, 

 Deptford, 

 Billinsgate, 

 Old Swan Stairs, 



Westminster Bridge, 4 20 



And that the low water at Woolwich precedes that at 



Deptford by . . 



Deptford precedes that at Billinsgate by 



Billinsgate Old Swan Stairs by - 



Old Swan Stairs Westminster Bridge 



37| 



22| 

 20 



222 



And the mean rise of the tides at these stations is. 



At Woolwich, 

 Deptford, 

 Billinsgate, 

 Old Swan Stairs, 

 Westminster Bridge, 



Feet. 



19 



18 



17 



13 



12 



In. 

 10| 



n 



H 



5, Mean of Six Weeks' Observations on the velocity of the Ebb 

 and Flood, Neap and Spring Tides, at Woolwich. 



