TY  - JOUR
T1  - A General Theory for the Mensuration of the Angle Subtended by Two Objects, of Which One is Observed by Rays after Two Reflections from Plane Surfaces, and the Other by Rays Coming Directly to the Spectator's Eye. By George Atwood, M. A. F. R. S.
JF  - Philosophical Transactions of the Royal Society of London (1776-1886)
VL  - 71
SP  - 395
EP  - 435
PY  - 1781/01/01/
UR  - http://dx.doi.org/10.1098/rstl.1781.0051
M3  - doi:10.1098/rstl.1781.0051
AU  - Atwood, G.
ER  -