TY  - JOUR
T1  - The Magnetic Materials in Claywares
JF  - Proceedings of the Royal Society of London. Series A, Containing Papers of a Mathematical and Physical Character (1905-1934)
VL  - 89
IS  - 607
SP  - 21
EP  - 30
PY  - 1913/08/01/
UR  - http://dx.doi.org/10.1098/rspa.1913.0058
M3  - doi:10.1098/rspa.1913.0058
AU  - Hopwood, A.
ER  -