March 12, 1915] 



SCIENCE 



39a 



Dr. R. Brauns studies the scapolite-bearing 

 ■eruptive rocks in the lake region of Laach 

 (pp. Y9-125). A full and interesting paper 

 on the discovery of a small crystal-grotto in 

 pegmatitic granite of Wildenau, Saxon Vogt- 

 land (pp. 126-185, 5 plates and 4 figs.), is 

 contributed by Dr. Ross Bruno. A study, 

 V7ith analyses of the basalts of Marburg, is 

 ■offered by Professor Arthur Schwantke (pp. 

 531-567, 8 plates and 5 figs.), and one on the 

 origin of talc deposits by Professor C. Doelter 

 of Vienna (pp. 521-530). Much interesting 

 information as to the nephrite of Harzburg is 

 supplied by Dr. J. Uhlig, of Bonn. 



There is also a paper on the monazite of 

 Dattas, Diamantina, State of Minas Geraes, 

 Brazil, by Dr. K Busz (pp. 482^99); the 

 methods employed for investigating the molec- 

 ular structure of silicate solutions are treated 

 of by Dr. H. E. Boeke (pp. 64-78) and a brief 

 account of a polishing apparatus for crystal 

 planes is given by Dr. Victor Goldschmidt, of 

 Heidelberg (pp. 186-192). This is followed 

 by a paper on an instance of the deposition of 

 sodium in contact-metamorphosis at Lange- 

 sundsfjord, Norway, by V. M. Goldschmidt, 

 of Kristiania (pp. 193-224), and a study of 

 <!ertain aspects of monohydrate lithium- 

 sulphates, by Dr. A. Johnsen (pp. 500-520). 

 The elffiolite-syenite-laccolite of the Sierra de 

 Monachique in southern Portugal is the sub- 

 ject chosen by Dr. Erich Keiser, of Giessen 

 (pp. 225-267, with geological sketch map on 

 Plate XII) ; Dr. Eduard Raphael Liesegang 

 treats of pseudoclase (pp. 268-276) ; the nomen- 

 ■clature of crystal forms is studied by Dr. L. 

 Milch (pp. 277-289), and a paper on the gran- 

 ites of the Carpathians is contributed by Dr. 

 J. Morozewicz (pp. 290-345). 



In his account of the tin deposits of Tas- 

 mania (pp. 346-387) Dr. Fritz Noething ex- 

 presses the opinion that these deposits are 

 ■either entirely or in great part of marine, not 

 of fluviatile origin. This paper is followed by 

 one on colloidal silicates by Dr. ~F. Rinne 

 (pp. 388^14). Besides his study of the 

 nephrite of Harzburg, Dr. J. IJhlig reports on 

 a diopside with manganese from the same 

 region (pp. 446—449). Less strictly scientific, 

 Tjut extremely interesting as a contribution to 



the historic description of a celebrated volcano, 

 is the paper by Dr. K. Sapper on the " HeU 

 of Masaya," presenting a synopsis of the ac- 

 counts of this Nicaraguan volcano given by 

 the early Spanish visitors to this region, sev- 

 eral of whom ascended to the mouth of the 

 crater, beginning with the ascent made in 1529 

 by Gonzalo Fernandez de Oviedo y Valdes. 



The mere recital of the many subjects treated 

 of in this volume is a sufficient indication of 

 its wide range and of the variety and value of 

 its contents, rendering it an important con- 

 tribution to mineralogieal science. 



The birthplace of Professor Bauer was the 

 village of Gnadenthal, near Schwabisch-Hall, 

 in Wurtemberg; at the date of his birth, 

 September 13, 1844, his father was the pastor 

 of the community. Two years later. Pastor 

 Bauer was transferred to Aalau and then to 

 Kunzelsau and Weinberg; in this last-named 

 place he was acting as " superintendent " at the 

 time of his death in 1872. ^ 



Max Hermann Bauer was the eldest of eight 

 children, six of whom still survive. In 1859, 

 when fifteen years old, he entered the Poly- 

 technic school in Stuttgart, where he devoted 

 himself to the study of mining engineering 

 and metallurgy, his interest in this latter 

 branch having been awakened by frequent 

 visits to the large iron foundries and mines of 

 Wasseralfingen quite near Aalau, with whose 

 officials his parents were well acquainted. 

 However, the question soon arose whether this 

 field would offer sufficient guarantees for the 

 future in the case of one without private for- 

 tune. Of the extremely conservative ideas 

 prevailing in his immediate neighborhood Dr. 

 Bauer writes : " In my native place at that 

 time people usually felt themselves confined 

 to the narrow limits of their birthplace; the 

 idea of seeking elsewhere the more favorable 

 opportunities lacking there, was regarded as 

 eccentric." 



Hence the young student, after successfully 

 passing his examination in the Stuttgart Poly- 

 technicum in 1862, turned his attention more 

 especially to mathematics and the natural sci- 

 ences, which he pursued from 1863 to 1865 at 



1 These autobiographical details were very 

 kindly furnished to me by Professor Bauer. 



