75 



Jahrg. Bd. Seite 



Michel-Levy, A. : Sur la nature des Spherolithes faisant 



partie integrale des roches eruptives. R. ... 1882 II 381 



— Apercu general sur la Constitution du Morvan. R. . . 83 I 37 



— Note sur la formation gneissique du Morvan et com- 



paraison avec quelques autres regions de meme nature. R. 83 I 37 



— Note sur les porphyrites micaeees. R 83 I 37 



— Sur les noyaux a polychroisme intense du niica noir. R. 83 I 361 



— Sur les roches eruptives basiques cambriennes du Mäcon- 



nais et du Beaujolais. R 84 I 64 



— Sur les positions d'intensite lumineuse egale dans les cri- 



staux niäcles entre les nicols croises, et application a 



l'etude des bandes concentriques des feldspaths. R. 84 I 313 



— Sur les bandes concentriques des feldspaths. R. . . 84 I 313 

 — , siehe: Fouque et Michel-Levy 



— et L. Bourgeois: Sur les formes cristallines de la zir- 



cone et sur les deduetions ä en tirer pour la determi- 



nation qualitative du zircon. R 82 II 343 



Sur le dimorphisme de l'acide stannique. R. . . 82 II 344 



Mickleborough, John: Locomotory appendages of Trilo- 



bites. R. . . 84 II 410 



Middlemiss, siehe: Keeping and Middlemiss. R. ... 84 II 430 



Mieg, siehe: Bleicher et Mieg. R 84 II 222 



Miers, H. A.: Cerussit von La Croix. R 83 II 8 



— Baryt von Wolfstein (?) in der Pfalz. R 83 II 9 



Milachewitch, C: Etudes paleontologiques. 2. Sur les 



couches ä Ammonites macroeephalus en Russie. R. 80 II 233 

 Miller, S. A.: Description of twelve new fossil Species and 



remarks upon others. R 80 II 94 



— - On the Synonomy of two Species of Spirifera. R. . . 80 II 114 



— Silurian ichnolites, with definitions of new genera and 



species. — Description of two new species from the 

 Niagaragroup and five from the Keokukgroup. — Note 

 upon the habits of some fossil annelids. R. ... 80 II 386 



— Description of four new species of silurian fossils. R. 81 I 103 



— Descriptions of four new species and a new variety of 



silurian fossils and remarks upon others. R. ... 81 I 265 



— Descriptions of five new species of Silurian fossils and 



remarks upon an undetermined form. R 81 I 431 



— New species of fossils and remarks upon others from 



the Niagara-Group of Illinois. R 81 II 408 



— Description of some new and remarkable Crinoids and 



other fossils of the Hudson River Group and notice of 

 Strotocrinus Bloomfieldensis. R. 82 I 307 



— Description of two new genera and eight new species of 



fossils from the Hudson River Group, with remarks 



upon others. R 83 II 97 



— Description of ten new species of fossils. R. ... 83 II 98 



— Description of three new species and remarks upon 



others. R 83 II 98 



— Description of three new Orders and four new f amilies 



in the class Echinodermata; and eight new species from 



the Silurian and Devonian formations. R 83 II 117 



— Glyptocrinus redefined and restricted; Gaurocrinus, Pyc- 



noerinus and Compsocrinus established, and two new 



species described. R 84 II 425 



