. Animal and vegetable physiology considered with reference to natural theology. Natural theology; Physiology; Plant physiology; Biology. CIRCULATION IN THE SEPIA. 243 sufficient force through the gills, is provided with a large and complicated- branchial apparatus; and the requisite power is supplied by two additional hearts, situated on the venae cavae, of which they appear as if they were dilatations, immediately before the branchial arteries are sent off.* They are shown at e, e, Fig. 355, which represents this part of the vascular system of the LoUgo, detached from the surrounding parts;
. Animal and vegetable physiology considered with reference to natural theology. Natural theology; Physiology; Plant physiology; Biology. CIRCULATION IN THE SEPIA. 243 sufficient force through the gills, is provided with a large and complicated- branchial apparatus; and the requisite power is supplied by two additional hearts, situated on the venae cavae, of which they appear as if they were dilatations, immediately before the branchial arteries are sent off.* They are shown at e, e, Fig. 355, which represents this part of the vascular system of the LoUgo, detached from the surrounding parts; the course of the blood. being indicated by arrows, c is one of the three trunks constituting the venag cavae, proceeding from above, dividing into two branches as it de- scends, and terminating, conjointly with the two venous trunks (d), which are coming from below, into the lateral or branchial hearts (e, e), already mentioned. Thence the blood is conveyed by the branchial arteries, (f, f), on each side, to the gills (g), and returned, by the branchial veins, (i), to the large central, or systemic heart (l), which again * These veins are surrounded by a great number of blind pouches, which have the appearance of a fringe; the use of this singular structure is 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. London : W. Pickering
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