90 Scientific Intelligence. 



13. Tabellen zur mikroskopischen JBestimmung der Miner alien 

 nach ihrem Brechungsindex ; von Dr. J. L. C. Schroeder vax 

 der Kolk.- Zweite umgearbeitete und vermehrte Aufiage ; von 

 E. H. M. Beekman. Pp. vi, 68 with folded plate. Wiesbaden, 

 1906 (C. W. Kreidel). — The first edition of these useful tables was 

 issued in 1900 and noticed in volume ix, p. 229, of this Journal. 

 The tables have been rearranged and increased in size by Dr. 

 Beekman, and in their new form w T ill unquestionably prove still 

 more valuable to those interested in microscopic mineralogy. 

 The preparation of this new edition was undertaken in order to 

 carry out the plan of the author, who died on June 17, 1905 ; it 

 consequently follows the lines laid down by him. 



14. Minercdogle des Departements du Rhone et de la Loire; 

 par Ferdinand Gonnard. Pp. 122, with 31 text-figures. 1906. 

 Lyon (A. Rey) and Paris (J. B. Bailliere & Fils). Annales de 

 l'lTniversite de Lyon. Nouvelle Serie : I. Sciences, Medecine, 

 Fascicule 19. — This is an account of the mineral species which 

 occur in two of the departments of France particularly rich in 

 this direction. Among the most conspicuous species may be 

 mentioned the azurites of Chessy, the zeolites of Mt. Simiouse, 

 the calcite of Couzon and the cerussites of Pacaudiere. The 

 work is a valuable supplement to the more exhaustive treatises 

 on mineralogy. 



15. Studien uber Meieoriten, Vorgenom?nen auf Grund des 

 Materials der Sammlung der Universitat Berlin; von C. Klein. 

 Aus den Abhandlungen des Konigl. Preuss. Akademie der Wis- 

 senschaften vom Jahre, 1906. Pp. 141, with three plates. Ber- 

 lin, 1906. — The meteorite collection of the University of Berlin 

 has always been a classical one ever since the time of Gustav 

 Rose. For many years, however, the collection did not grow 

 adequately, and it is only since Professor Klein took hold of the 

 matter that it has regained its relative importance among the 

 great collections of the world. In 1887, there were 213 localities 

 represented, and now in 1906 the number has increased to 500. 

 This publication is much more than a mere catalogue of the spe- 

 cimens represented, for it also gives a description of meteorites 

 in general, with a special account of certain important examples. 

 One of the most interesting of these has been earlier described 

 by the same author, namely the leucituranolite of Schafstadt. 



III. Miscellaneous Scientific Intelligence. 



1. Plaster -plaques for Museums; by George Lincoln Good- 

 ale (Communicated). — The fine finish of a properly made plaster 

 mount renders it preferable to slate or ground glass or polished 

 wood, for specimens which require a firm support and a good 

 contrasting surface. The excellent mounts which have been 

 made by the Dentons show clearly the adaptability of plaster for 

 even the most delicate and brilliant organisms. The problem in 

 our Museum was to provide a mount which should answer not 



