71 
in London. The foggy atmosphere often interrupted 
ray labours; but from careful comparison of many cal- 
culations, I am satisfied of the correctness of the result. 
The maps of Arrowsmith, of major Rennel, of Delille, 
of Golberry, and of Chenier, are therefore erroneous on 
this point. The house in which I lived, and where I 
made my observations, was situated in the centre of the 
town. The discussion of all my astronomical observa- 
tions will be found in the scientific part of my travels. 
Fez is situated on the slope of several hills, which sur- 
round it on every side except the north and north-east. 
It is impossible to compute exactly the number of 
its inhabitants; but I was told that it contained about 
100,000 souls, and that before the last plague they were 
double this number. 
The streets are very dark, because they are not only 
so narrow that two men on horseback can hardly ride to- 
gether, but also because the houses, which are very high, 
have on the first floor a projection, which intercepts 
much of the light. This inconvenience is increased 
by a sort of galleries or passages, which connect the up- 
per parts of the houses, and by the high walls which are 
raised at certain distances from one side of the street to 
the other, as if to support the houses. This custom I 
also met with at Tetuan and Alcassar. These walls 
have arched passages which are shut at night; and the 
city becomes then divided into several quarters, and all 
communication between any one part of the town and 
the rest is effectually precluded. 
As the town is built on inclined planes, and the 
ground is not paved, the streets are very dirty, espe- 
cially in rainy weather. It is then impossible to walk 
without being up to the knees in mud. When it is fine, 
they are clean enough, because no nuisances are suffer- 
