TY  - JOUR
T1  - The Theory of Symmetrical Optical Objectives.--Part II
JF  - Proceedings of the Royal Society of London (1854-1905)
VL  - 74
SP  - 396
EP  - 399
PY  - 1904/01/01/
UR  - http://dx.doi.org/10.1098/rspl.1904.0133
M3  - doi:10.1098/rspl.1904.0133
AU  - Chalmers, S.
ER  -
