TY  - JOUR
T1  - A Portable Telemeter, or Range-Finder
JF  - Proceedings of the Royal Society of London (1854-1905)
VL  - 70
SP  - 347
EP  - 358
PY  - 1902/01/01/
UR  - http://dx.doi.org/10.1098/rspl.1902.0036
M3  - doi:10.1098/rspl.1902.0036
AU  - Forbes, G.
ER  -