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Bemerkung
Vermutlich fehlt das Vortitelblatt. Paginierungsfehler: Nach S. 208 wird die Paginierung mit S. 203 fortgesetzt. S. 203 handschriftlich in S. 209 korrigiert.
Strukturtyp
Monographie
Parlamentsperiode
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Wahlperiode
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Titel
Chap. III. Of the Definition of the External Characters of Fossils
r External Characters of Fossils. 27 form very different conceptions of the same deno mination; nay, sometimes a Mineralogist applies even several denominations to the same chaiacter, and one denomination to different characters. This indefinite application of the External Characters is a principal cause of their imperfection, and of the consequent inutility of the descriptions of fossils, on the contrary, the descriptions would have at tained perfection had the External Characteis been as well defined as they are arranged and complete. In Mathematics the method of teaching owes great part of its perfection to the definition of terms; for hdre all combine the same ideas with a sum, a line, or an angle, and again all apply the same denomination to one idea. If then Mineia- , logists would t unite, with a view to render Oryc- tognosy, in this respect, as nearly similar as possi ble to Mathematics, what advantages might not this science derive from their endeavours ? §. 34. The definition of the External Characters of Fossils in general, requires, 1st. that we know what External Characters arc ; 2d. how many their number; 3d. that we apply to each an appropriate and determinate denomination; 4tli. that we give of each the proper and adequate conception ; and 5th. that we endeavour to shew the relations in which they stand to each other. What