898 SEC. 17. MINERALOGY, CRYSTALLOGRAPHY, ETC. 



3503. Forms of the Isometric Systems, represented in all 

 possible combinations. Prof. Dr. Prestel, Emdem. 



3504. Skeleton of a Rhombohedron, with a divided side for 

 crystallographic demonstration. Albrecht, Tubingen. 



By the string placed round the dividing rods all the faces of the rhombo- 

 hedral system, of which the indices of Ji, k, & / are represented by three of 

 the number to 5, can be illustrated. Compare Miller's Treatise on 

 Crystallography, p. 55. 



3505. Book, " Nephrit und Jadeit nach ihren mine- 

 ralogischen Eigenschaften sowie nach ihrer urgeschichtlichen und 

 ethnographischen Bedeutung." By Heinrich Fischer, Stuttgart, 

 1875. With 131 woodcuts, and two chromolithographs. 



Prof. Leopold Heinrich Fischer, Freiburg, Baden. 



In this book is originated a new branch of mineralogy, viz., the archseo- 

 logical and ethnographical. Hitherto the sculptures, amulets, and ornaments 

 of stone in the museums have been looked upon as show objects, but as quite 

 devoid of scientific interest. 



The volume also serves as a guide to the series of models (in wax, 

 gypsum, &c.) exhibited by Dr. Adolf Ziegler, of Freiburg, in Baden, of such 

 scientifically important and prominent original sculptures from Asia, New 

 Zealand, Marquesas Island, Otaheite, Central America, Mexico, Peru, &c. as 

 are partly exhibited in the Freiburg Mineralogical Museum and the Freiburg 

 Ethnographical Museum, and partly were lent by other museums to the 

 Freiburg Museum for the preparation of models. 



There can be no doubt that the presence of such models in the Archaeo- 

 logical and Ethnographical Museums will be a great help to this branch of 

 study, which has until now been quite neglected, but which promises to become 

 of the highest importance in the study of the most ancient races of men ; for 

 the stone remains are indestructible proofs of past periods of civilisation. 



The remains of sculpture, the archaeological records of America and 

 Oceania, so remarkable in their form and in the astonishing hardness of the 

 minerals out of which they are made, and which have hitherto been neglected in 

 Europe, will by means of these models become better known. 



3506. Imitations of large and small Amulets, Idols, Im- 

 plements, &c. of archaeological and ethnological importance. 

 Compare the work of Prof. H. Fischer, " Nephrit und Jadeit.'' 



Dr. Adolph Ziegler, Freiburg, Baden. 



These imitations (of different materials according to the characters of the 

 minerals) were prepared, on the suggestion of Prof. H. Fischer, Director 

 of the Ethnographical Museum of the University of Freiburg, and were used 

 partly to preserve for the ethnographical collection of the University copies of 

 the originals sent to Freiburg for exhibition, and partly for purposes of ex- 

 change. Professor Fischer says, in his new work on Nephrite and Jade, " I 

 had in Freiburg, Baden, the much-desired opportunity for the manufacture 

 of casts, as Dr. Ziegler, whose preparations in wax are deservedly valued 

 in the studies of anatomy and the history of evolution, has succeeded so 

 happily in the imitation in wax of the originals which I handed to him, 

 even to the extent of copying the original colours so exactly that it is difficult 

 to say, on looking at the two together, which is the original and which 

 the imitation." 



A list of the different pieces is given with the imitations, containing references 

 to Professor Fischer's work. 



