XII. 
Latitudes and Longitudes of Several Places in the United States, 
as determined by Observation. 
BY ROBERT T. PAINE, A. A. 8. 
In the autumn of 1831, being about to set out on a journey 
to some of the Southern States, it occurred to me that a favor- 
able opportunity presented itself for attempting to determine 
the latitude and longitude of the places I might pass through, 
when the time and the weather would permit. I therefore pro- 
vided myself with a sextant of the manufacture of Parkinson and 
Frodsham, graduated to 10”, and the same that was used by me 
in an observation, at Monomoy Point Lighthouse, of the an- 
nular * eclipse of February, 1831; an artificial horizon of mer- 
cury, the glasses in the skreen of which had been carefully 
examined ; and a pocket chronometer made by Barraud, which 
was highly recommended for being but little affected by the mo- 
tion of a carriage or of the body. 
The result of the observations made on my journey with 
these instruments, I now have the pleasure of communicating. 
It was quite impossible to measure, satisfactorily, a single 
* A memoir of this remarkable eclipse is in preparation and will appear in 
the ensuing volume. 
