248 On the Peftilential Difeafes which 
Gulf of Dafcon. Lower down, and oppofite to Ortygia, it 
is contracted. by the promontory and fort of Plemmyrium. 
The Little Port, or Portus Marmoreus, divides Ortygia from 
the Continent on the eaft, and wafhes the fouthern wall of 
Achradina. The Bay of Thap/us runs up behind Achradina 
on the eaft, and forms, by the junction of its weflern extre- 
anety with the city, the Port of Trogilus *. 
At the diftanee of about two miles from iyi and 
fomewhat lefs than a mile and a half from Neapolis, (whofe 
weftern wall crofled the low grounds through which it runs,) 
the river Anapus empties into the great harbour. This fiream, 
which is only twenty-four feet wide, and twelve or fifteen 
deep at its mouth, flows, in a ferpentine courfe, through a 
fmall extent of country, which, though flightly elevated on 
its fonth or fonth-weftern fide, esta north and north-weft 
confitts of an extenfive marfhy plain +. 
Between the Anapus and the promontory of Pilchtanyistil 
was fituated the little fuburb of Olympia, furrounding the - 
feite of the ancient temple of Jupiter Olympus, built upon 
an eminence, and bounded on either fide by the vaft Lyfi- 
melian marfhes, extending from the head of the great har- 
bour, half covered with water in the vernal months, and ex- 
haling, under a vertical fun, the moft unwholefome and. per= 
nicious vapours f. 
The preceding detail, it is hoped, will neither be found al. 
together tirefome, nor foreign to the purpofe of this effay. 
. Some part of it might, indeed, have been omitted, as not 
directly effential to the main defign of the paper; but there 
would have been lefs unity in the defeription, and fome por- 
tion of the fubfequent narration might have been lefs perfectly 
comprehended, 
* Aah al Swinburne. De Non, 
+ Roilin. Swinburne. De Non. ~ Thucydides, B..vi- and vii. 
+ Rollip. De Non. Swinburne. Watkin’s Travels, Letter xxiv. 
The reader will find great affiftance in comprehending diftinélly every 
part of the preceding defcription, from confulting the plan of Syracufe in 
Rollin’s Ancient Hifory, og that in his Roman Hiftory, which, though 
inaccurate jn fome refpects, 1 have reafon to believe the moft correét. 
rine 
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