-244- 



Geologie. 



Äußere Dynamik. 



Staff, H. v.: Uber Struktur-Isohypsen. (Zeitschr. f. prakt. Geol. 1911. 

 19. 104—108. 3 Fig.) 



Tietze, 0.: Die Grundwasserverhältnisse bei Deutsch-Lissa (Schlesien). 

 (Zeitschr. f. prakt. Geol. 1911. 19. 158—162. 2 Fig.) 



Whitaker, W. , H. R. Mill and H. F. Parsons: The Water Supply 

 of Sussex from Underground Sources. (Geol. Surv. Engl, and Wales. 

 1911. 255 p. 1 Taf. 2 Fig.) 



Rabot, C. et E. Muret: Les variations periodiques des glaciers. 

 XVIme Rapport 1910. (Annales de Glaciologie. 1911. 6. 81—103.) 



Andree, K. : Die geologische Bedeutung des Wachstumsdruckes kristalli- 

 sierender Substanzen. (Geol. Rundschau. Bespr. 1912. 3. 7 — 11.) 



Petrographie. 

 Allgemeines. 



Mennell, F. P. : Some basic dykes and problenis of rock genesis. (Geol. 



Mag. 1911. 8. 10—15. 2 Taf.) 

 Merrill, P. G. : On the supposed origin of the Moldavites and like 



sporadic Glasses from various sources. (Proc. U. S. Geol. Surv. 40. 



429—433. 2 pls. Washington 1911.) 

 Butler. F. H. : The brecciation of mineral-veins. (Min. Mag. 1911. 16. 



121—136. 3 Taf.) 



Crook, T. : Further remarks on the electrostatic Separation of minerals. 

 (Min. Mag. 1911. 16. 109-111.) 



Schneiderhöhn, H. : Die Beobachtung der Interferenzfarben schiefer 

 Strahlenbündel als diagnostisches Hilfsmittel bei mikroskopischen 

 Mineraluntersuchungen. (Zeitschr. f. Krist. 1912. 50. 231—241.) 



Gesteinsbildende 3Iineralien. 



M e r w i n , H. E. : Quartz and fluorite as Standards of density and refractive 



index. (Amer. Journ. of Sc. (4.) 31. 429. 1911.) 

 — A method for determining the density of certain solids by means of 



Rohrbach's Solution having a Standard refractive index. (Amer. Journ. 



of Sc. (4.) 31. 425. 1911.) 

 Wright, F. E.: A micrometer ocular with coordinate scale. (Journ. Wash. 



Acad. Sc. 1. 60. 1911.) 

 Johnston, J. : A correlation of the elastic behavior of metals with certain 



of their physical constants. (Journ. Wash. Acad. Sc. 1. 250. 1911.) 

 Cole, G. A. F. and 0. H. Little: The mineral condition of calcium 



carbonate in fossil shells. (Geol. Mag. 1911. 8. 49 — 54.) 

 Workman, K. : Calcite as a primary Constituent of igneous rocks. (Geol. 



Mag. 1911. 8. 193—200. 2 Taf.) 



