TY - JOUR T1 - Professor Malet's Classes of Invariants Identified with Sir James Cockle's Criticoids JF - Proceedings of the Royal Society of London (1854-1905) VL - 38 SP - 45 EP - 57 PY - 1884/01/01/ UR - http://dx.doi.org/10.1098/rspl.1884.0061 M3 - doi:10.1098/rspl.1884.0061 AU - Harley, R. ER -