THE RIVER THAMES AT LONDON BRIDGE AND THE SEA. 
19S 
Below North Stand. 
Sheerness. 
1.9438 
2.0112 
1.9420 
Trinity high-water mark near the dock-gates of the City Canal . 
Ditto, answering to xxm of the indices marked on the south-west 1 
side of the entrance to London Docks J 
Ditto, at the west side of the lock-gate at the entrance to St. 1 
Catherine’s Docks, answering to the index mark xxvm . . J 
Ditto, on the west side of London Bridge 2.1621 
Finding so great a difference between the marks at the City Canal, London 
Docks, &c. and that at London Bridge, I levelled again in October last from 
St. Catherine’s Docks to London Bridge, but found the same results. (See 
page 33.) 
List of Standard Marks and other Points of Reference between Sheerness and 
London Bridge. 
Feet. 
North standard at Sheerness 
South ditto ditto 
Eastern ditto ditto 
Navy Well ditto ditto 
Little ditto near tide-gauge at Sheerness . . . . 
Queenborough standard 
St. James ditto 
The boundary post of Hoo, on a little eminence in \ 
the marshes, &c. (See page 10.) J 
The 3 milestone at the bank of canal. (See page 14) 
2 mile ditto 
1 mile ditto 
An iron clamp at second gate of Gravesend Canal. \ 
(See page 15) . .J 
Brass standard mark on the pier at Gravesend . . 
The boundary stone of Swanscomb. (Page 18) . . 
Erith Church. (Page 20) 
Standard in Woolwich Arsenal 
A ^ in a corner-stone near the officers’ guard-room 
The top of the 4^ mile post in the river ( n ) . . . 
n on a stone at the west end of the dock-yard . . 
higher 
ditto 
lower 
higher 
ditto 
ditto 
below 
above 
ditto 
ditto 
ditto 
below 
ditto 
ditto 
above 
ditto 
ditto 
ditto 
0.0000 
0.6048 
0.6/35 
5.3921 
0.4843 
10.6029 
28.7454 
2.6317 
2.4204 
2.0038 
1.1448 
0.5564 
0.1828 
4.7578 
1.5669 
1.2019 
1.5576 
1.7182 
1.9975 
