TY  - JOUR
T1  - An Account of a Protracting Pocket Sextant. 
JF  - Abstracts of the Papers Communicated to the Royal Society of London (1843-1854)
VL  - 5
SP  - 563
EP  - 563
PY  - 1843/01/01/
UR  - http://dx.doi.org/10.1098/rspl.1843.0057
M3  - doi:10.1098/rspl.1843.0057
AU  - Bainbridge, C.
ER  -