TY  - JOUR
T1  - Observations on the Development of Ornithorhynchus
JF  - Philosophical Transactions of the Royal Society of London. Series B, Containing Papers of a Biological Character (1896-1934)
VL  - 199
SP  - 31
EP  - 168
PY  - 1908/01/01/
UR  - http://dx.doi.org/10.1098/rstb.1908.0002
M3  - doi:10.1098/rstb.1908.0002
AU  - Wilson, J.
AU  - Hill, J.
ER  -