TY  - JOUR
T1  - Researches on the Impregnation of the Ovum in the Amphibia; and on the Early Stages of Development of the Embryo. (Third Series)
JF  - Philosophical Transactions of the Royal Society of London (1776-1886)
VL  - 144
SP  - 229
EP  - 244
PY  - 1854/01/01/
UR  - http://dx.doi.org/10.1098/rstl.1854.0009
M3  - doi:10.1098/rstl.1854.0009
AU  - Newport, G.
AU  - Ellis, G.
ER  -