an oval form, the largest diameter of the oval being
situated laterally, as in Plate 3, Fig: 1 & 2. In some cases, the lateral
notch, and the enlargement of the hole is combined, to effect the same purpose.
One or other of these contrivances may be observed
in the dorsal or lumbar portion of all birds, although
they obtain in a less degree, where the motion is more
divided, than when there is only one or two vertebrae
moveable; this may be observed in a very striking degree
in the silver pheasant, the cavities of the two articulations
formed by the single vertebra are very deep, and admit
no doubt of the arrangement being made to facilitate lateral
motion.
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Manuscript details
- Author
- George Oakley Fleming
- Reference
- AP/28/6
- Series
- AP
- Date
- 1846
- IIIF
-
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Cite as
On Motion in the lumbar division of the spine of birds, by George Oakley Fleming , 1846. From The Royal Society, AP/28/6
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