TY  - JOUR
T1  - On the Microscopic Structure of the Scales and Dermal Teeth of Some Ganoid and Placoid Fish
JF  - Philosophical Transactions of the Royal Society of London (1776-1886)
VL  - 139
SP  - 435
EP  - 475
PY  - 1849/01/01/
UR  - http://dx.doi.org/10.1098/rstl.1849.0023
M3  - doi:10.1098/rstl.1849.0023
AU  - Williamson, W.
ER  -