The history and survey of London : from its foundation to the present time . of Stone, as the Outfide, cut and laid regular, or only common Rubble Stones, laid in very bad Mor- tar, as it is in Rochefter- Bridge ? N. B. The Perfons, who are to anfwer thefe Queries, may add to their Anfwers what fur- ther Remarks and Obfervations they fhall think proper, to the fame Purpofe as thefe Queries. In the Middle of every Arch there are Piles drove, which they call Driftfhod-Piles, in or- der to prevent the Water gutting away the Ground. I am of Opinion, from the Nature of the Work, that the Bridge was
The history and survey of London : from its foundation to the present time . of Stone, as the Outfide, cut and laid regular, or only common Rubble Stones, laid in very bad Mor- tar, as it is in Rochefter- Bridge ? N. B. The Perfons, who are to anfwer thefe Queries, may add to their Anfwers what fur- ther Remarks and Obfervations they fhall think proper, to the fame Purpofe as thefe Queries. In the Middle of every Arch there are Piles drove, which they call Driftfhod-Piles, in or- der to prevent the Water gutting away the Ground. I am of Opinion, from the Nature of the Work, that the Bridge was not fo wide origi- nally, as it is now ; and that the Points of the Piers have been much extended, in order to eredr, Houfes thereon. I obferve likewife, that, in fome of the Piers, there are frefh Calings of Stone before the original Afhler. d»fwer July the yh, 1746. George Dance. Queries relating to London-Bridge, propofed in 1746. I. What are the Shapes and Dimenfions of the More Stone Piers, the Sterlings, and Openings, at ^en High and Low Water. N. Book II. The HISTORY of LONDON. 829 On the Weft Under the Arcr L. Eaft Side. Side of the F. In. F. In. F. In. Firft Lock 16 O — 5 9 8 10 Second 14 6 — 9 O 10 4 Third 23 1 — 3 0 , 14 0 Fourth *4 0 — 7 0 *5 7 Fifth 18 9 — 10 3 18 7 Sixth *7 7 — 8 7 15 n Seventh 18 1 — 8 10 15 11 Eighth 25 1 — 9 2 18 3 iV. B. This will be befl anfwered by figured* Sketches, or Plans, correctly laid down from•* an exact Menfuration by a Scale, provided that Scale be not fmaller than 8 or 10 Feet to an Inch. II. What are the Depths of Water juft above, under, and juft below the Arches, or Locks, at a common Low-Water ? N. B. Thofe Depths may be marked on the Plans or Sketches. * III. At what Heighth above Low-Water- Mark, and what Depth below the Surface of the Sterlings, is the under Bed, or lower Side, of the firft Courfe of Stones ? IV. What is there between the Stones and the Heads of the Piles ? Is it one Row
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