340 RECORD OF SCIENCE FOR 1887 AND 1888. 



BIBLIOGRAPHY OF LITHOLOGY, 1887, 1888. 



I. — Special Treatises. Books. 



Daxa, .T. D. Mauual of Mineralogy iind Lithology. 4tli ed. 518 pp. 8vo. Wiley 



»fc Co. 

 Iduings, Joseph P. Microscopical Physiography of the iock-iiial<iiig minerals and 



aid to the microscopical study of rocks. H. Roseubusch. Translated and 



abridged for use in schools and colleges, pp. 3o3. 8vo. Twenty-six plates of 



l)hotoniicrographs. 

 MawePv, W. Primer of Micro Petrology. London, Office of Life-Lore. 1888. 

 Michel-Lew, A., and A. Lacroix. Les Min^ranx des Roches. Paris. Librairie 



Polytechniqne. Bandry & Co. 1888. 

 RUTLEY, Fraxk. Rock-forniing minerals. Thomas Tburby. London, 1888. 8vo, 



pp. 25-2. 

 ROSEXBUSCH, H. Mikroskopische Physiographie der raassigea Gesteine. Stuttgart, 



1887. 877 pp. and 6 plates showing micro-structures. 



Hiilfstabelleu zur mikroskopischen miueralbestimmung in Gesteiuen. Stutt- 

 gart, 1888. 



II. — CuuREXT Literature. 



(a) RELATING TO COXDITIOXS OF CRYSTALLIZATION. 



Becker, George F. The Washoe Rocks. Bull. Cal. Acad. Sci., No. 6, January, 1837, 

 vol. II, pp. 93-120. 



The Texture of Massive Rocks. Am. Jour. Sci., 1887, vol. xxxiii, p. 50. 



UlLLKR, J. S. The latest volcanic eruption in northern California, and its peculiar 



lava. Am. Jour. Sci., 1887, vol. xxxiii, p. 45. 

 The rock described is a basalt, carrying primary quartzes. 

 Iddixgs, J. P. The nature and origin of Lythophysaj, and the lamination of acid 

 lavas. Am, Jour. Sci., 1887, vol. xxxiii, p. 36. 



Obsidian Cliif, Yellowstoue National Park. 7tli Ann. Rep. U. S. Gcol. Survey, 



J. W. Powell in charge, pp. 249-295. Ten full-page plates, showing macro and 

 macro-structures and four figures in text. Gov'u Printing Office, 1888. 



A very important paper, dealing with the chemical composition and structure 

 of obsidians, mainly of the Yellowstone Park. There is shown to be in these 

 obsidians a gradual passage from puniiceous to lithodal and porphyritic, rhyo- 

 litic, and often more or less spherulitic forms. The obsidian cliff llow is especiailly 

 remarkable for its extent and thickness, being equaled only by certain Mexican 

 occurrences. So far as known, it is the only occurrence in which a columnar 

 structure is developed. The absolute freshness of the rock, and absence of sec- 

 ondary alteration products, affords excellent opportunity for the study of the 

 phenomena of cry.stallization. The results obtained have been in part alluded to 

 in Mr. Iddings's paper on the origin of lithophysa;, etc., already noted. 



On the ori ;in of Primary Quartz in Basalt. Am. Jour. Sci., September, 1888, 



vol. XXX VI, pp. 208-2-21. 



JUDP, JoHX W. The Natural History of Lavas as illustrated by the material ejected 

 from Krakatoa. Geol. Mag., January, 1888, p. 1. 



Lagorio, A. Ueber die Natur der Glasbasis sowie der Krystallisatiousvorgiiuge im 

 eruptiven Magma. Min. und pet. Mittheilungeu, viii. Band, vi. Heft, p. 421. 



Williams, George H. Holocrystalline granitic structure in eruptive rocks of Ter- 

 tiary age. Am. Jour. Sci., 18S7, vol. xxxiii, 3d, p. 315. 



