TY  - JOUR
T1  - Niagara Falls as a Chronometer of Geological Time. 
JF  - Proceedings of the Royal Society of London (1854-1905)
VL  - 56
SP  - 145
EP  - 148
PY  - 1894/01/01/
UR  - http://dx.doi.org/10.1098/rspl.1894.0091
M3  - doi:10.1098/rspl.1894.0091
AU  - Spencer, J.
ER  -