134 Reports and Proceedings — 



roofing-slates, artificial stones, fire-bricks, terra-cotta, stucco, etc^ 

 A supplemental list of materials besides tbose used in Vienna; and 

 one of tbe old collection of the Society of Austrian Engineers and 

 Architects, are added. 2. Upper Austrian ; 3. Salzburg ; 4. The 

 Tyrol ; 5. The Vorarlberg ; 6. Styria ; 7. Carinthia ; 8. Carniola ; 

 9. Gorz and Gradisca ; 10. Trieste; 11. Istria ; 12. Dalmatia ; 

 13. Bohemia; 14. Moravia; 15. Silesia; 16. Galicia ; 17. Bukowina. 

 For these districts, the chief cities are noted with illustrations of 

 several important buildings, and an enumeration of the local building- 

 materials in relatively the same order as those described for Vienna. 



B. In the Kingdom of Hungary, we have — (1) Budapest, its 

 chief buildings and matei'ials ; also (2) the materials used in 

 Siebiirgen, and (3) Croatia. 



II. The foreign localities and their building - materials here 

 mentioned are: — Germany, Italy ^ (including ancient Rome), France, 

 and Belgium, with illustrations of several of their chief buildings; 

 also lists from England, Norway, Eussia, Switzerland, Spain and 

 Portugal, Greece, the United States of America, Asia, and North 

 Africa. 



The assistance given to the author by merchants, manufacturers, 

 and scientific friends, with information and specimens, is duly 

 acknowledged throughout the book. 



This catalogue raisonne of Eastern-European and other building- 

 materials is a very valuable addition to the bibliography of the 

 subject ; and the fine collection to which it is a guide is indeed, as 

 Dr. Brezina remarks in the preface, a lasting monument to Felix 

 Karrer, who has devoted much time and labour to the formation of 

 this important part of the Vienna Museum. T. E. J. 



K,EI=OiaTS .A-lsTID Z^S-OaZEJEZDHsTG-S. 



Geological Society of London. 



I.— January 27, 1892. —Dr. W. T. Blanford, F.R.S., Vice- 

 President, in the Chair. — The following communications were read : 



1. " On the Hornblende-schists, Gneisses, and other Crystalline 

 Eocks of Sark." By the Eev. Edwin Hill, M.A., F.G.S., and Prof. 

 T. G. Bonney, D.Sc, F.E.S., V.P.G.S. 



The authors refer to Mr. Hill's paper, published in 1887, for a 

 general description of the Island. They were led to examine Sark 

 again in the hope that its rocks might afi'ord some clue to the 

 genesis of the hornblende-schist of the Lizard. They describe the 

 structure, macroscopic and microscopic, of the various foliated 

 rocks. These are: — (a) The basement gneiss, a slightly foliated, 

 somewhat granitoid rock, probably of igneous origin, but with some 

 abnormal environment, and possibly intrusive into, instead of older 

 than the rock which succeeds it. (6) The hornblende-schists, almost 



1 See Geol. Mag. April, 1889, pp. 174-177, for a notice of Chevalier Jervis's 

 work on the "Economic Geology of Italy," treating of Italian materials of con- 

 struction, ancient and modern, with numerous illustrations of public buildings. 



