XXIY CONTENTS. 



. 228. Class . . , 338 



. 229. Mineral System . . . 340 



PART III. 

 NOMENCLATURE. 



. 230. Definition ... 346 



. 231. Object of the Systematic Denomination . 347 



. 232. Properties of the Systematic Denomination 349 



. 233. Object of the Names . . 351 



. 234. Name of the Order . . 352 



. 235. Selection of the Names of the Orders . 354 



. 236. Signification of the Names of the Orders 355 



. 237. Name of the Genus . . 358 



. 238. Denomination of the Species . 360 

 . 239. Representation of the Species through its Denomi- 

 nation . . .361 



. 240. Systematic Nomenclature how to be judged of 363 



.241. Trivial Nomenclature . . 365 



PART IV. 

 CHARACTERISTIC. 



. 242. Definition . . .368 



. 243. Natural and Artificial Characters . 369 



. 244. Properties of the Characters . . 370 



. 245. Absolute and conditioned Characteristic Marks 373 



. 246. Arrangement of the Characters of the Species 374 



. 247- No Characteristic before the System . 379 



. 248. Base of a perfect Characteristic . 381 



. 249. Use of the Characteristic . . , 383 

 . 250. Determination of Individuals, by means of the 



Characteristic. Example . . 384 



. 251. Immediate and mediate Determination. Example 388 



. 252. Base of the mediate Determination . 390 



Characters of the Classes, Orders, Genera, and Species 391 



