TY  - JOUR
T1  - Observations on the Development of Ornithorhynchus
JF  - Proceedings of the Royal Society of London. Series B, Containing Papers of a Biological Character (1905-1934)
VL  - 78
IS  - 525
SP  - 313
EP  - 315
PY  - 1906/10/12/
UR  - http://dx.doi.org/10.1098/rspb.1906.0065
M3  - doi:10.1098/rspb.1906.0065
AU  - Wilson, J.
AU  - Hill, J.
ER  -