TY  - JOUR
T1  - On Biologic Regions and Tabulation Areas. 
JF  - Proceedings of the Royal Society of London (1854-1905)
VL  - 50
SP  - 472
EP  - 474
PY  - 1891/01/01/
UR  - http://dx.doi.org/10.1098/rspl.1891.0062
M3  - doi:10.1098/rspl.1891.0062
AU  - Clarke, C.
ER  -