NORTH AMERICA. 
43 
are incredibly fertile ; which appears from the tall 
reeds of the one, and the heavy timber of the other. 
Before we left the waters of Broad River, having 
encamped in the evening on one of its confiderable 
branches, and left my companions, to retire, as ufual, 
on botanical refearches, on afcending a deep rocky 
hill, I accidentally difcovered a new fpecies of ca~ 
ryophyllata (geym odoratiffimum) 5 on reaching to 
a fhrub my foot (lipped, and, in recovering myfelf, 
I tore up fome of the plants, whofe roots filled the 
air with animating (cents of cloves and fpicy perfumes. 
On my return towards camp, I met my philo- 
fophic companion, Mr. M c Intofh, who was feated 
on the bank of a rivulet, and whom I found highly 
entertained by a very novel and curious natural ex- 
hibition, in which I participated with high relifh. 
The waters at this place were (till and fhoal, and 
flowed over a bed of gravel juft beneath a rocky 
rapid : in this eddy (hoal were a number of little 
gravelly pyramidal hills, whofe fummits rofe almoft 
to the furface of the water, very artfully conftruct- 
ed by a fpecies of fmall cray-fifn (cancer macrou- 
rus) which inhabited them : here feemed to be their 
citadel, or place of retreat for their young againft 
the attacks and ravages of their enemy, the gold- 
fifh : thefe, in numerous bands, continually infefted 
them, except at Ihort intervals, when fmall detach- 
ments of veteran cray-fifh (allied out upon them, 
from their cells within the gravelly pyramids, at 
which time a brilliant fight prefented ; the little gold- 
nfh inftandy (led from every fide, darting through 
the tranfparenc waters like dreams of lightning 5 
lome even fprang above the furface, into the air, 
but all quickly returned to the charge, furround- 
png the pyramids as before^ on the retreat of the 
cray- 
