...While these important processes are taking place in the axial part of thedorsal shield, its external form also is changing...
Ernst Haeckel 「The Evolution of Man」
...Underneath the axial rod or chorda runs a very simple alimentary canal, a tubethat opens on the ventral side of the animal by a mouth in front and anusbehind...
Ernst Haeckel 「The Evolution of Man」
...328—A piece of the axial rod(chorda dorsalis), from a sheep embryo...
Ernst Haeckel 「The Evolution of Man」
...The axial skeleton consists ofthe vertebral column (the skeleton of the trunk) and the skull (skeleton of thehead); the latter is a peculiarly modified part of the former...
Ernst Haeckel 「The Evolution of Man」
...It follows the long axis of the body inthe shape of a cylindrical axial rod of elastic but firm composition, equallypointed at both ends...
Ernst Haeckel 「The Evolution of Man」
...But this unsegmented primary axial skeleton is soon replaced by the segmentedsecondary axial skeleton, which we know as the vertebral column...
Ernst Haeckel 「The Evolution of Man」
...It was by observation of the spots that the period ofthe axial rotation of the Sun became known...
Thomas Orchard 「The Astronomy of Milton's 'Paradise Lost'」
...Then allthe emergent pencils now converge to a point on the axial line m M(produced beyond m), and an eye suitably placed can take in all ofthem at once...
Richard A. Proctor 「Half-hours with the Telescope」
...The time of axial revolution which determines the length of theday varies with different planets...
Henry Warren 「Recreations in Astronomy」
...Laplace has given us proof thatthe period of the earth's axial rotation has not changed 1/100of a second of time in two thousand years...
Henry Warren 「Recreations in Astronomy」
...Obviously it must make just one axial to one orbitalrevolution...
Henry Warren 「Recreations in Astronomy」
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