TY  - JOUR
T1  - The Aberrations of a Symmetrical Optical Instrument
JF  - Proceedings of the Royal Society of London. Series A, Containing Papers of a Mathematical and Physical Character (1905-1934)
VL  - 83
IS  - 560
SP  - 99
EP  - 106
PY  - 1909/12/10/
UR  - http://dx.doi.org/10.1098/rspa.1909.0082
M3  - doi:10.1098/rspa.1909.0082
AU  - Pocklington, H.
ER  -