TRAVELS IN 
7 3 
a-breaft of fort Picolata ; where, being defirous of 
gaining yet farther intelligence, I landed ; but, to 
my difappointment, found the fort difmantled and 
deferted. This fortrefs is very ancient, and was built 
by the Spaniards. It is a fquare tower, thirty feet 
high, invefted with a high wall, without baftions, 
about bread: high, pierced with loop holes and fur- 
rounded with a deep ditch. The upper ftory is 
open on each fide, with battlements, fupporting a 
cupola or roof : thefe battlements were formerly 
mounted with eight four pounders, two on each 
fide. 
The works are conftructed with hewn ft one, ce- 
mented with lime. The ftone was cut out of quar- 
ries on St. Anaflatius Ifland, oppofite St. Auguf- 
tine : it is of a pale reddifh brick colour, and a tef- 
taceous compofition, confiding of fmall fragments of 
lea-fhells and fine fand. It is well adapted to the 
conftrudting of fortifications. It lies in horizontal 
mafles in the quarry, and conftitutes the foundation 
of that ifland. The cafile at St. Apguftine, and 
moil of the buildings of the town, are of this ftone. 
Leaving Picolata, I continued to afcend the ri- 
ver. I obferved this day, during my progrefs up 
the river, incredible numbers of fmall flying infects, 
of the genus termed by naturalifts Ephemera, con- 
tinually emerging from the fhallow water near fhore, 
fome of them immediately taking their flight to 
the land, whilft myriads crept up the grafs and 
herbage, where remaining for a fliort time, as they 
acquired fuflicient ftrength, they took their flight 
alfo, following their kindred to the main land. 
This refurre£lion from the deep, if I may fo ex- 
prefs it, commences early in the morning, and ceafes 
after the fun is up. At evening they are feen in 
6 clouds 
