482 Scientific Intelligence. 



ance of this work is opportune and it will be of great service to 

 students in metallurgy, miners and in general to the public inter- 

 ested in mines and mining. No book of similar scope has ap- 

 peared in this country since that of J. D. Whitney in 1855. 



l. v. p. 



3. Sack- mid Oris- Verzeichniss zu den Miner alogischen und 

 Geologischen Arbeiten von Gerhard vom Rath. Im Auftrage 

 der Frau vom Rath bearbeitet von W. Bruhns und K. Busz. 

 197 pp. Leipzig, 1893 (W. Engelmann). — The scientific career of 

 Professor G. vom Rath was remarkable alike for the amount of 

 mineralogical work which he accomplished as for the minute care 

 and accuracy displayed through it all. His skill in solving the 

 most intricate problems in crystallography and in presenting the 

 results to the eye will always be a matter of admiration to those 

 who study his papers. To all concerned with mineralogical litera- 

 ture the present complete index to his many papers will be most 

 useful, forming as they do a very important part in the history 

 of the science. 



4. Miner cdogisches Lexicon fur das Kaiserthum Oesterreich von 

 V. vonZepharovich. Ill Band, enthaltend die Nachtrage aus den 

 Jahren 1874-1891 und die General Register. Nach cles Autors 

 hinterlassenem Manuscripte bearbeitet von F. Becke. 478 pp. 

 Vienna, 1893 (F. Tempsky). — This volume is published by the 

 Vienna Academy at the cost of the Zepharovich fund. It forms 

 the conclusion to the author's well known work upon the Miner- 

 alogy of Austria and is edited from the manuscript left by him. 

 An alphabetical list of localities referring to the three volumes 

 occupies the last two hundred pages. 



5. Handbuch der Mineralogie von Dr. C. Hintze. Siebente 

 Lieferung. pp. 961-1120. Leipzig (Veit and Co.). — The seventh 

 part of this exhaustive work, recently issued, is devoted to the 

 orthorhombic and monoclinie members of the Pyroxene group. 



6. On the meteorite from Hamblen, Co., Teruiessee ; by L. G. 

 Eakins (communicated). — In a paper upon the Hamblen Co. me- 

 teorite in this Journal tor October, 1893, there occur some errors 

 in figuring the formulas of the siliceous portions, to which Prof. 

 S. L. Penfield has very kindly called my attention. This part 

 of the paper was hastily written several months after the ana- 

 lytical work was done, and to this haste, caused by pressure of 

 entirely different matters, these errors are due. As Prof. Penfield 

 suggests, the soluble portion of the silicates, giving the ratios : 

 RO : A1 2 3 : Si0 2 = -506 : -222 : "760, can, by assuming the FeO 

 and MgO to exist as olivine, be divided, approximately into 

 olivine and a calcium-aluminum silicate like anorthite, both of 

 which are soluble in hydrochloric acid. The insoluble portion 

 reduces to, RO : A1 2 3 : Si0 2 = -670: -146: -844, which probably 

 represents a mixture ol pyroxene and enstatite ; one or both be- 

 ing: aluminous. 



