— 476 — 



Ajithracotherium di Cadibona Con 6 tav.), 515, — Gr. Trabücco : L*isola 

 di Lampedusa. Studio geo-paleontologico (con 3 tav.). 573. — E. Meli: 

 Xotizie bibliografiche solle rocce magnetiehe dei dintorni di Roma. Let- 

 rera di E. Meli al prof. Filippo Keller. 609 : — Bibliografia soll' azione 

 inagnetica esercitata dalle rocce. 645. — G-. Toldo : Studi geologici solla 

 provineia di Piaceuza con tav, , 671. — U. Bötti: La grotta ossifera di 

 Cardamone in Terra d'Otranto con tav,). 689. — Eesoconto dell" Adu- 

 nanza generale della Societä geologica italiana tennta in Bergamo dal 9 

 al 14 settembre 1S90 : Seduta del giorno 9 settembre 1890. 717 ; — Seduta 

 del giorno 11 settembre 1890, 741 : — Seduta del giorno 14 settembre 

 1890. 750, ■ — C, F. Barona : Eelazione dell" escursione geologica eseguita 

 in Val d'Erve ii giorno 10 settembre 1890. 758. — A. Tommasi : Eelazione 

 delle gite in Val Seriana ed a Lovere eseguite nei giorni 12 e 13 set- 

 tembre 1890. 762. — Bibliograria geologica e paleontologica della Lom- 

 bardia. 766. 



15' The American Journal of Science. Edited by J. D. and E. S. 

 Dana. 8°. Xewhaven. Conn.. U. St. [Jb. 1891. II, -217-.; 

 Vol. XLI. May 1891. Xo. 245. — T. C. Chambeelds and E. D. Salis- 

 blry: Eelationsliip of the Pleistocene to the Prepleistocene of the Missi- 

 ssippi Basin. soutli of the glaciation limit. — E, V. Wlnchell: Age of 

 the Saganaga Syenite. — A. Genie : Contribntions to Mineralogy. Xo. 50, 

 Avith CrystallogTaphic Xotes by S. L. Peneield and L. V. Pirsson; — 

 Contribntions to Mineralogy. Xo. 51. — W. P. Blaee : Colunibite of the 

 Black Hills. — H, X. Eidlet : The Eaised Eeefs of Fernando de Xoronha. 



— T. 31. Eeade : Cause of Active Oompressive Stress in Rocks and Ee- 

 cent Eock Flexures. — W. P. Headden : Phosphates from the Black Hills. 



— W. E. Headden and J. G. Maceintosh: Supplementary Xotice ou the 

 Polycrase of Xorth and South Carolina. 



June 1891. Xo. 246. — E. D. Pbeston: The study of the Earth's 

 Eigure by means of the Pendulum. — F. J. H. Merrill: Post-Glacial- 

 History of the Hudson Eiver Valley, — Whitmane Ceoss: Alnnite and 

 Diaspore from the Eosita Hills. Colorado. — VC. H. Melville : Diaspore 

 Crystals. — E. VC. Wood: Combination of Gas Jet- nnder Pressure. — 

 Caret Lea : Allotropic Silver. — A. Lindeneohl : Xotes on the Submarine 

 Channel of the Hudson Eiver and other evidences of Eostglacial Subsidence 

 of the Middle Atlantic Coast Eegion. — J. C. Eussell : Are there Glacial 

 Eecurds in the Xewark System? — V". T. Brigham: Eecent Eruption of 

 Kilauea. — C. H. Snow: Torqnois in Sonthwestern New Mexico. 



Vol. XLII. Jnly 1891. Xo. 247. — B. X. Bbackett and J. F. Wil- 

 liam- : Newtonite and Eectorite — two new minerals of the Kaolinite Group. 



— L. G. Eaeixs: New Analyse- of Astrophyllite and Tsekeffkinite. — 

 J. E. Illings and S. L. Penfield : Minerals in hollow Sphemlites of Ehyo- 

 lite from Grlade Creek. Wyoming. — J. St. Brown: Bernardinite : Is it 

 a Mineral or a Fungus*? — Charles E. Beecher : Development of Bi- 

 lobites Tat'. I . — L. V. Pirsson: Gmelinite from Xova Scotia. — J. M. 



