TY  - JOUR
T1  - The Origin and Growth of Ripple-Mark. 
JF  - Proceedings of the Royal Society of London (1854-1905)
VL  - 74
SP  - 565
EP  - 566
PY  - 1904/01/01/
UR  - http://dx.doi.org/10.1098/rspl.1904.0159
M3  - doi:10.1098/rspl.1904.0159
AU  - Ayrton, M.
ER  -