2o8 ADDITIONS TO THE LIBEART. 



L. Ricciardi. Sail' azione dell' acqua del mare uei vulcani, 129. — L. Ric- 

 ciardi. Sulle recce viilcaniche di liossena nell' Emilia, 135. — F. Sacco. 

 Note di paleoicnologia italiana, 151. — L. Eicciardi. E-icerche di chimica 

 viilcauolooica, 11)5. — A. Amiglietti. Osservazioni oeologiche sul terreno 

 glaciale dei diiitorni di Lovere, 267. — F. Sacco. II bacino terziario del 

 Piemonte, 281). — L. Bozzi. Sulle iilliti cretace di Vernasso iiel Friuli, 

 399.— G. Mercalli. L' Isola Vulcano e lo Stromboli dal 1886 al 1888, 407. 



Milan. Societa Italiana di Scienze Natural!. Atti. Vol. xxxii. 

 1889. Fasc. 1-4. 1889. 

 P. Franco. Quale fu la causa che demoli la parte meridionale del 

 cratere del Somma, G5. — F. Sacco. II bacino terziario del Piemonte, 136, 

 391. 



Minneapolis. American Geologist, Vol. v. Nos. 1-6. 1890, 

 Purchased. 

 R. T. Hill. Classification and Origin of the chief Geographic Features 

 of the Texas Pegion, 9. — J. F. James. On Laurentian as applied to a 

 Quaternary Terrane, 29. — A. Wanner. Casts of Scolithiis flattened by 

 pressure, 35. — A. Lakes. Extinct Volcanoes in Colorado, 38. — L. G. 

 Yates. Notes on the Geology and Scenery of the Islands forming the 

 southerly line of the Santa Barbara Channel, 43. — P. Hay. Notes on a 

 Kansas Salt-Mine, 65. — P. T. Hill. Classification and Origin of the 

 chief Geographic Features of the Texas Pegion(II.), 68. — P. I. Murchison. 

 On the Silurian System of Pocks, 80. — E. W. Claypole. Illustrations of 

 the ^' Level of no Strain " in the Crust of the Earth, 83.— J. W. Fewkes. 

 The Origin of the Present Outlines of the Bermudas, 88. — J. M. M'Creery. 

 On some of the Causes of Extinction of Species, 100. — A. S. Packard. 

 An Attempt to explain Glacial Lunoid Furrows, 104. — J. F. Kemp. 

 On the Dykes near Kennebunkport, Maine, 129. — V. F. Masters. Triassic 

 Traps of Nova Scotia, with Notes on other Intrusiyes of Pictou and 

 Antigonish Counties, N. S., 140. — P. P. Rowley. Batocrinus Calvini, a 

 new Burlington Crinoid, 146. — J. Marcou. The Triassic Flora of Rich- 

 mond, Virginia, 160. — A. C. Lawson. Note on an Occurrence of Native 

 Copper in the Animikie Rocks of Thunder Bay, 174. — C. P. Keyes. 

 Certain Forms of Strajyarollus from South-eastern Iowa, 193. — C. H. 

 Hitchcock. The use of the terms Laurentian and Newark in Geological 

 Treatises, 197.' — C. P. Dryer. The Glacial Geology of the Irondequoit 

 Region, 202. — S. Calvin. Note on a Specimen of Conularia missouriensis 

 Swallow, 207. — T. S. Hunt. The GeologicaL History of the Quebec 

 Group, 212.— E. W. Claypole. The Making of Pennsylvania, 225.— 

 C. H. Gordon. Observations on the Keokuk Species of A(/aricocrinus, 

 257.— P. S. Tarr. Drainage Systems of New Mexico, 261.— E. O. Uhicli. 

 New Lamellibranchiata, 270. — P. Hay. Artesian Wells in Kansas and 

 causes of their Flow^, 296. — II. Hensoldt. Crystallogenesis, 301. — N. H. 

 Winchell and J. A. Dodge. The Brenham, Kiowa County, Kansas, 

 31eteorites, 309. — W. F. Cummins and O. Lerch. A Geological Survey 

 of the Concho Country, 321.-- J. F. James. On the Maquoketa Shales 

 and their correlation with the Cincinnati Group of South-western Ohio, 

 335. — J. Marcou. The Lower and Middle Taconic of Europe and North 

 America, 357. — H. Hensoldt. Crystallogenesis, 375. 



. . Vol. vi. Nos. 1-6. Purchased. 



U. S. Grant. Account of a Deserted Gorge of the Mississippi near 

 Minnehaha Falls, 1. — C. R. Keyes. Generic Relations of Platyceras and 

 Capulus, 6. — L. C. Wooster. The Permo-Carboniferous of Greenwood 



