FIRST APPENDIX, 1892. 



As this work was intended for the use of beginners in the pursuit of geolog- 

 ical and palffiontological information, as well as for the most advanced students, it 

 has been urged that I should have accented the technical words, with a view of 

 bringing about correct and uniform pronunciation. 



This criticism may be well taken, but there are only a few words commonly 

 mispronounced, and a few examples will suffice to correct the pronunciation of most 

 of these. 



Words ending in ceras, crinus, pora, and lepis are accented on the antepenult, as 

 Orthoc'eras, Cyrtoc'eras, Gomphoc'eras, Actinoc'rinus, Xenoc'rinus, Platyc'rinus, 

 Monticulip'ora, Leptop'ora, Chirol'epis, Bothriol'epis, etc. Words ending in ites 

 have the i long and the accent on the penult, as Cypricardi'tes, Dalmani'tes, 

 Favosi'tes, Litui'tes, Trocholi'tes, etc. Words ending in nema, mena, etc. , have the 

 accent on the penult, as Cyclone'ma, Loxone'ma, Strophome'na, Calyme'ne, etc. 

 We say Ath'yris, Cari'na, Cerat'odus, Ccelentera'ta, Epithe'ca, Onych'odus, Palse- 

 as'pis, and Syringoth'yris. 



I have seen no reason to change the established nomenclature of the Groups of 

 rocks as set forth in the geological part of this work, notwithstanding there may 

 be some who apply the word Cambrian to rocks indiscriminately from the Taconic 

 to the Devonian. It seems to be a word that is easily pasted over ignorance, and 

 some use it for that reason. 1 



•ofo- 



VEGETABLE KINGDOM. 



There have been very few fossil plants described since the publication of this 

 work. 



Bythotrephis pergracilis, Dawson, 1889, 

 Trans. Roy. Soc. Can., vol. 7, p. 54, Up. 

 Taconic. 



Cruziana carleyi, James, 1885, Jour. Cin. Soc. 

 Nat. Hist., vol. 7, p. 155. Not recog- 

 nized. 



Dactyloides bulbosus, Hall, 1880, 39th Rep. 

 N. Y. St. Mus. Nat. Hist., p. 160. Ob- 

 scure markings supposed to represent 

 marine algae, graptolites, or traces of a 

 spongoid substance. 



Dicranophyllum. Type D. gallicum. 



Lepidodendron cliftonense, Dawson, 1891, 

 Bull. G. S. A., vol. 2, p. 533, Coal Meas. 

 murrayanum, Dawson, 1891, Bull. G. S. A., 

 vol. 2, p. 532, Coal Meas. 



Nematophyllum was preoccupied by McCoy 

 for a genus of corals in 1851, and hence 

 could not be used again by Fontaine & 

 White as a generic name. I now pro- 

 pose for Nematophyllum of Fontaine & 

 White in Permian or Upper Carbonif- 

 erous Flora of West Virginia and S. W. 

 Pennsylvania, p. 35, the generic name 

 Nematophyllites with N. angustus, Fon- 

 taine & White as the type. 



Rusophycus, from its etymology, should be 

 spelled Rhysophycus. 

 acadicum, Dawson, 1861 (Rusichnites 

 acadicus), Can. Nat. and Geol., vol. 1, 

 p. 363, and Acad. Geol., p. 410, Coal 

 Meas. 



665 



