PETliOGKAPHY. 349 



HovKY, E. O. A cordiorite guoiss from Connecticut. Am. Jour, of Sci., July 18. 



18S8, vol. XXXVI, p. 57. 

 Kcporls from the vicinity of Guilfortl, Connecticut, a cordiorite gneiss. This 



is the first to be reported iu the United States. The rock consists essentially of 



quartz, biotite, cordierite, aud some plagioclase. 

 lIuiiUAiU), Lucius L. Beitriige zur Kenntniss der Nosean-fiihrenden Auswiirfliuge 



des Laacher Sees. Min. und pet. Mittheilungen, Vlli. Baud, v. Heft, p. 3.56. 

 Hughes, T. McKenny. On some brecciated rock iu the Archa'au of Malvern. Geol. 



Mag., November, 1.-^87, p. 501. 

 HuTTON, F. W. The eruption of Mount Tarawera. Quar. Jour. Geol. Sot-., No. 



170, May, l-8rt, vol. XLiii, p. 178. . 

 Gives an account of the eruption of June 10, 1886. The materials ejected are 



cl.issed as augite andesites and rhyolites. 

 On a hornblende biotite rock from Dusky Sound, New Zealand. Quar. Jour. 



Geol. Soc, No. 176, November, 1888, vol. XLiv, p. 745. 

 Hyland, J. Shkarson. UeberdieGesteinedesKilimaudscharonuddesseu Uragebaug. 



Min. und pet. Mittheilungeu, x. Band, iii. Heft, p. 203. 

 JoLY, J. On the occurrence of lolite iu the Granite of County Dublin. Geol. Mag., 



November, 18p8, p. 517. 

 JoxES, E. J. Examination of Nodular Stones obtained by trawling off Colombo- 



Rec. Geol. Soc. of India, part 1st, l88ri, vol. xxi, p. 35. 

 JUDD, J. W. On the Volcanic Phenomena of the ei'uptiou [of Krakatoa] aud on the 



Nature aud Distribution of the ejected materials. The Eruption of Krakatoa 



and subsequent Phenomena. Keport of the committee of the Royal Society, 



London. Triibner & Co., 1888. 

 Kkatzer, F. Geologische Beschreibung der Umgebuug von Ricau. Jahrbuch de k. k. 



geol. Reichs.instalt, 1888, xxxviu, 3rd, pp. 355-416. Two plates showing micro- 

 structure. 

 Kemp, J. F. Rosetowu extension of the Cortlaudt Series. Am. Jour. Sci., Ociober, 



1888, vol. xxxvi, pp. 247-'253. 



The Dikes of the Hudson River Highlands. Am. Nat., August, 1888, p. 691. 



Describes dikes of basic rocks somewhat resembling the Camptonite of New 



Hampshire. 



Kenuall, Percy F. Preliminary notes on some occurrences of Tachylyte in Mull. 

 Geol. Mag., December, 1888, p. 555. 



Kinaiian, G. H. Arenaceous Rocks, Sands, Sandstones, Grits, Conglomerates, Quartz- 

 Rocks, and Quartzites. Sci. Proc. Roy. Dub. Soc, July, 1887, vol. v, pp. 507-618. 



Gives many intei-esting facts relative to the composition, occurrence, and eco- 

 nomic value of these materials. 



Slates and Clays, with Introduction and Building notes by R. Clark. Sci. 



Proc, Roy. Dub. Soc., May, 1888, vol. vi, p. 69. 



Tke paper is acontinuation of those previously given on Irish ecoimmic geology, 



On Irish Arenaceous Rocks. Supplementary note to paper given in Sci. Proc. 



Roy. Dub. Soc, aoI. vi, p. 507. Treats of the rocks wholly from an economic 

 standpoint. Sci. Proc. Roy. Dub. Soc, February, 1888, vol. vi, pp. 6-13. 



Marbles and limestones. Sci. Proc Roy. Dub. Soc, Ajiril, 1887, vol. v, pp. 



489-496. Continued iu January number, p. 372. 



KisPATiE, M. Die Glaucophangesteino der Fruskagora in Kroatien. Jahrb. derk. 

 k. geol. Reichsanstalt, 1887, xxxvii, Ist, i)p. 35 — 46. 



Klein, Carl. Optische IJutersuchung zweier Granatvorkommen vom Harz. Neues 

 Jahrb. Min. Geol., etc., 1^87., i. Band, zweitcs Heft, p. 200. 



Petrographische Untersuchung einer Sinte von Gesteiuen aus der Umgebuug 



des ]}(dsener Sees. Sitz. der kon. preus. Akad. der Wiss. zu. Berlin, February, 1888, 

 V, 2n<l, i.p. 91-121 



The rocks desctibed an- an oli\ ine-beaiiug trachyte, from Torre Alliua aud Sau 

 Lorenzo; olivine-bearing audesitic trachyte, from Sassara and Mont AlHua; 



