TY  - JOUR
T1  - A Memoir on the Theory of Reciprocal Surfaces. 
JF  - Proceedings of the Royal Society of London (1854-1905)
VL  - 17
SP  - 220
EP  - 221
PY  - 1868/01/01/
UR  - http://dx.doi.org/10.1098/rspl.1868.0031
M3  - doi:10.1098/rspl.1868.0031
AU  - Cayley, P.
ER  -