Archive image from page 645 of The cyclopædia of anatomy and. The cyclopædia of anatomy and physiology cyclopdiaofana0401todd Year: 1847 624 SKELETON. passes with me to my task of comparison, I warn him that he should feel within himself a full conviction of the truth, that in order to gain a fair insight of the law of formation, he must not suffer names of different significa- tions to hide the common analogy or similitude which the things themselves manifest. He must have fully freed himself of the barbarisms of the nomenclature which the unreasoning human anatomist still makes use of; he m


Archive image from page 645 of The cyclopædia of anatomy and. The cyclopædia of anatomy and physiology cyclopdiaofana0401todd Year: 1847 624 SKELETON. passes with me to my task of comparison, I warn him that he should feel within himself a full conviction of the truth, that in order to gain a fair insight of the law of formation, he must not suffer names of different significa- tions to hide the common analogy or similitude which the things themselves manifest. He must have fully freed himself of the barbarisms of the nomenclature which the unreasoning human anatomist still makes use of; he must not suppose that because one spinal piece is named sacrum, it is therefore absolutely dif- ferent to another spinal piece named vertebra. And even in respect to the name vertebra, which applies alike to all spinal segments, however quantitatively different these may be, he should not think these the same things in form and dimensions, and elemental consti- tuents, simply because they bear the same name. For in reality this name vertebra attaches to bodies which are quantitatively different, and is, therefore, a name as truly misapplied to generalise not only over the spinal uniis of the skeletal axes of the four classes of vertebrata, but even over those of the human type ; as if, while viewing a series of circles, semi- circles, and segments, we called it a series of segments of semicircles or of circles, which it evidently is not. We would not call the two quantities, viz. circle and segment, by the same name ; neither should we name such different quantities as cervical, dorsal, and coccygeal forms under the common title ' vertebra.' If we fully ackowledge to this first truth, truth will be begotten of it; but if we still begin the calculation with the error, error will spring from out of it, and defy all mathematical computation. PROPOSITION I. loiebxs are unequal quan- tities— In the human spinal axis I find that those bodies which the human anatomist terms vertebr


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