TY  - JOUR
T1  - On the Formation of Ripple-Mark in Sand
JF  - Proceedings of the Royal Society of London (1854-1905)
VL  - 36
SP  - 18
EP  - 43
PY  - 1883/01/01/
UR  - http://dx.doi.org/10.1098/rspl.1883.0077
M3  - doi:10.1098/rspl.1883.0077
AU  - Darwin, G.
ER  -