. The cyclopædia of anatomy and physiology. Anatomy; Physiology; Zoology. 674 SKELETON. a nucleus, around which are arranged, in pal- mate order, the rays of nine archetypes, which, bending towards each other, and to the hori- zontal ray (9), fashion the fan-shaped caudal fin. This caudal fin, whose rays describe the arc p Q, is composed of the palms of nine arche- Fig. Tl\e cranio-Jacial apparatus of the osseous fish (Phuronectid<e), Indicating the metamorphosis of twelve or more spinal quantities in its composition. types, radiating from the common centre (a). The nine inferior palm
. The cyclopædia of anatomy and physiology. Anatomy; Physiology; Zoology. 674 SKELETON. a nucleus, around which are arranged, in pal- mate order, the rays of nine archetypes, which, bending towards each other, and to the hori- zontal ray (9), fashion the fan-shaped caudal fin. This caudal fin, whose rays describe the arc p Q, is composed of the palms of nine arche- Fig. Tl\e cranio-Jacial apparatus of the osseous fish (Phuronectid<e), Indicating the metamorphosis of twelve or more spinal quantities in its composition. types, radiating from the common centre (a). The nine inferior palms are those which num- ber from 17 to the palm 9 ; and the nine supe- rior palms are those which number from 1 to the palm 9; while the azygos palm 9 may be regarded as composed of the dorsal and ven- tral palms of the last archetype bent towards each other, and becoming in the horizontal line fused together. The bones (o, p, q\ are the counterparts of the neural and haemal laminar arches, assuming the same palmate order as the palms. The head (Jig. 492.) and the caudex (Jig. 493.) constitute the origin and termination of spinal series, and are ex- amples of special modifications exercised upon the original archetypal quantities. PROP. XLVI. The uniform archetypal se- ries undergoes a graduated metamorphosis of its quantities far the production of all varieties of skeletal species.— In _/?,§•. 494. I represent the archetypal series of the dorso-ventral quanti- ties constituting the uniformity, forasmuch as all the segments are plus and quantitatively equal. The segment 1 is equal to the segment 38, and to all the intervening segments. This uniform series of quantities appears finite, like the right line (CD) which passes through its centre; but as the right line itself is but a part or proportional of that ideal line which is infinite or boundless, so of the series of archetypal quantities, numbering in the figure from 1 to 38 ; for this series may like number be produced
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