Hen's egg and dissected embryo Product:Postcard Steam tug moving between barges

Steam tug moving between barges on the Thames

Lord Russell is shown here as the ship's captain

with horses feeding from a trough at right

and prepares to enjoy a hearty meal

Hen's egg and dissected embryo Product:Postcard Steam tug moving between bargesPlate 39 from the paper 'Observations on the changes the egg undergoes during incubation in the common fowl', by Everard Home, Philosophical Transactions of the Royal Society, vol. 112 (1822), pp. 339 356. Three figures showing the egg at eighteen days' development with the egg opened to show the embryo in situ: and the embryo dissected to show the yolk being drawn into the body. Signed lower left 'Franz Bauer del.' Original: watercolour on board. 1822