. The cyclopædia of anatomy and physiology. Anatomy; Physiology; Zoology. SKELETON. 635 contains seven. The human cervix (B, Jig. 457.) occasionally develops only five or six. I have seen some species of the monkey tribe wherein the cervix counted only five or six; and I have no doubt, that if we dissected other mammalian bodies as frequently as we. A, the neck of the sloth (Bradi/pus didacti/lus), representing the costo-sternal quantities lost to the seven cervical vertebra ; B, the neck of another species of sloth (B. tridactyhis}, exhibiting the loss of costo-sternal quantity, from nine cer
. The cyclopædia of anatomy and physiology. Anatomy; Physiology; Zoology. SKELETON. 635 contains seven. The human cervix (B, Jig. 457.) occasionally develops only five or six. I have seen some species of the monkey tribe wherein the cervix counted only five or six; and I have no doubt, that if we dissected other mammalian bodies as frequently as we. A, the neck of the sloth (Bradi/pus didacti/lus), representing the costo-sternal quantities lost to the seven cervical vertebra ; B, the neck of another species of sloth (B. tridactyhis}, exhibiting the loss of costo-sternal quantity, from nine cervical vertebras. In both figures it is shown how the numerical difference of vertebras of the cervix depends upon the number of metamorphosed archetypes. do the human subject, we should find also in them many exceptions to the rule which we now call general. But these exceptions will be called " ano- malies " by the special anatomist. To this I answer, that if we understood fairly the true interpretation of the universal law, we should forthwith blot out the word anomaly from anatomical nomenclature ; for there can be no anomalies any more than there can be exceptions to the universal law. Anomalies, such as they appear upon the bodies of one species, as, for instance, the cervical ribs (a, b) of the cervical vertebrae (6, 7 of B, Jig. 457.), are,'in reality, not more remarkable to the normal condition of that species than the figure and proportions of one species (A, Jig. 456.) are to those of another and different species (s,Jig. 456.). The same law presides over all conditions of formation. * PROP. XXIV. The number of cervical vertebrcB in the mammal cervix depends upon the number of archetypal costo-vertebral figures which have suffered metamorphosis. —Even if it were true that the mammal cervix invariably contains the fixed number of seven vertebra, still there would appear no reason why we should not interpret the fact in the following mode, namely, that the
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