46 Mr. Williams's further Particulars 
A.* The large quadrant, called in Arabic, kootoop-bede ; in 
Hindoo, droop, the name of the north polar star. This in- 
strument is built of stone, fixed in mortar, and clamped with 
iron in a very clumsy manner ; between most of the stones 
are spaces of part of an inch. The stile, in its length 
from north to south, measured 39 feet 6\ inches ; the height 
of the south end, 5 feet 4^ inches ; height of the north end, 
22 feet 3 inches. This stile consists of two walls 1 1\ inches 
thick, with a flight of 27 steps between ; and on the outer edge 
of each of these walls are fixed two iron rings. The distance 
between the two rings is 5 feet 8| inches ; from the upper- 
most to the top, 18 feet 8 inches ; from the lower one to the 
bottom, 15 feet and \ an inch ; both sides are nearly alike. 
The rings are, each of them, of an inch in thickness, and 
they are let into the wall between two stones ; the holes 
through which the object is to be viewed are -y^ths of an 
inch in diameter, fths of which space, in each, is covered 
by the projection of the stone. The radius of one of the 
quadrants, on which the hour lines are marked, from the 
outer part of the wall of the stile to the inner edge of 
the arc, is 9 feet and ^ths of an inch ; that of the other, 
9 feet one inch. The width of the rim of the quadrants, 
which are inclined to a line perpendicular to the shadow 
falling from the gnomon, is 5 feet 10^ inches. The qua- 
drant is divided into 6 gurries, and each gurry into 10 
On the outer wall of the stile, fronting the east, at the 
* The references are to the plates annexed to Sir Robert Barker’s account. 
