. Animal and vegetable physiology, considered with reference to natural theology. Biology; Physiology; Plant physiology; Natural theology. 440. pair of ganglia, or the cephalic, have been considered, though improperly, as the brain of the animal. The next step in the gradation occurs in the Fhyllosoma (Leach,) where the ganglia composing each pair in the ab- domen and in the head, are united into single masses, while those in the thoracic region are still double. In the Cymo- ihoa, (Fab.,) which belongs to the family of Onisciis, there is the appearance of a single chain of ganglia, those on t
. Animal and vegetable physiology, considered with reference to natural theology. Biology; Physiology; Plant physiology; Natural theology. 440. pair of ganglia, or the cephalic, have been considered, though improperly, as the brain of the animal. The next step in the gradation occurs in the Fhyllosoma (Leach,) where the ganglia composing each pair in the ab- domen and in the head, are united into single masses, while those in the thoracic region are still double. In the Cymo- ihoa, (Fab.,) which belongs to the family of Onisciis, there is the appearance of a single chain of ganglia, those on the one side having coalesced with those on the other; each pair composing a single ganglion, situated in the middle line; while the longitudinal cords which connect them still re- • These segments arc numbered in this and the following- figure in their proper order, beginning witli that near the head, a is the external antenna? a, tlic internal antenna; and e, the Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Roget, Peter Mark, 1779-1869. Philadelphia, Carey, Lea & Blanchard
Size: 1163px × 2149px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury18, booksubjectnaturaltheology, booksubjectphysiology
