TY  - JOUR
T1  - On the Equations of Circles. (Second Memoir.) 
JF  - Proceedings of the Royal Society of London (1854-1905)
VL  - 27
SP  - 417
EP  - 419
PY  - 1878/01/01/
UR  - http://dx.doi.org/10.1098/rspl.1878.0070
M3  - doi:10.1098/rspl.1878.0070
AU  - Casey, J.
ER  -