171 



Jahrg. Bd. Seite 



Baltimore; über das Vorkommen des von Cohen als 

 „Hudsonit" bezeichneten Gesteins am Hudson-Fluss. B.1S85 II 17') 

 "Williams, Geo. H.: A Summary of Progress in Mineralogv 



and Petrography in 1885. R 86 I 234 



— Cause of the apparently perfect cleavage in American 



Sphene (Titanite). ß 87 I 244 



— On the Paramorphosis of Pyroxene to Hornblende in 



Rocks. R * 87 I 287 



— The Gabbro and associated Hornblende Rocks occurring 



in the Neighbourhood of Baltimore. R 87 I 288 



— Rutil nach Ilmenit in verändertem Diabas. — Pleonast 



(Hercynit) im Norit vom Hudson-Fluss. — Ferowskit 



in Serpentin (Feridotit) von Syracuse, N. Y. B. . 87 II 263 



— Peridodites of the ..Cortlandt Series" on the Hudson 



River near Peekskill N. Y. R 87 II 113 



— The Xorites of the ,. Cortlandt Series •' on the Hudson 



river near Peekskill, X. Y. R 87 II 316 



■ — On the Serpentine (Peridotite) occurring in the Onon- 



daga Salt-group at Syracuse, X. Y. R 88 I 80 



— Notes on the minerals occurring in the neighbourhood 



of Baltimore. R 88 II 18 



— Modern Petrography, an account of the Application of 



the Microscope to the Study of Geology. R. ... 89 II 48 



— On a new Petrographical Microscope of American Manu- 



facture. R 89 II 48 



Williams, Henry S.: On the fossil faunas of the Upper 

 Devonian along the meridian 76° 30' from Tompkins 

 County, X. Y., to Bradford County, Pa. R 86 I 322 



— Xotice of a.new LimuloidCrustacean from the Devonian. R. 86 I 344 



— New Crinoids from the Rocks of the Chemung Period 



(Upper Devonian) of New York State. R 86 I 360 



— On a crinoid with movable spines. R 86 I 484 



Williams, J. Francis: lieber den Monte Amiata in Toscana 



und seine Gesteine. (Mit Taf. XIII— XVI.) A. . BB. V 381 

 Williams on, W. C: On the Organization of the fossil plants 



of the coal-measures. Part XII. R 85 II 210 



— On some undescribed tracks of invertebrate animals from 



the Yoredale rocks and on some inorganic phenomena, 



produced on tidal shores, simulating plant remains. R. 86 II 143 



— On the Organisation of the fossil plants of the coal- 



measures. Fart XIII. Heterangium tiliaeoides Will. 



and the Kaloxylon Hookeri. R 83 II 175 



— On the Organisation of the fossil plants of the coal- 



measures. Part XIY. The true fructification of Cala- 



mites. R ; ..... 89 I 162 



— On some anomalous cells developed within the interior 



of the vascular and cellular tissues of the fossil plants 



of the Coal Measures. R 89 I 163 



— A monograph on the morphology and histology of Stig- 



maria flcoides. R 89 I 336 



— On the relations of Calamodendron to Calamites. R. . 89 I 339 



— On recent researches amongst the carboniferous plants 



of Halifax. R 89 II 213 



Williston f S. W.: Ueber Ornithocheirus hilsensis Koken. R. 86 II 113 

 Willm: Sur la composition des eaux de Bagneres-de-Luchon, 



Haute-Garonne. R 88 II 415 



