342 RECOED OP SCIENCE FOR 1887 AND 1888. 



Callaway, C. A preliiuiiiary inquiry into the Genesis of the Crystalline Schists of 

 the Malvern Hills. Quar. Jour. Geol. Soc.,No. 171, August, 1888, vol. XLiil, p. 

 525. 



On Parallel Structure in rocks as indicating a sedimentary origin. Geol. 



Mag., .July, 1887, p. 351. 



On the alleged conversion of crystalline schists into igneous rocks in County 



Gal way. Quar. Jour. Geol. Soc, No. 171, August, 1888, vol. XLiii, p. 517. 



Contends that the ancient gneisses of Galway (Ireland) display evideuca of 

 having been formed in part from mixtures of diorite and granite, similar to the 

 more modern " diglomerates." 



The above-(inoted author has also contended (same journal, p. 536) that many of 

 the gneissic and schistose rocks of the Malvern Hills are formed out of igneous 

 materials and owe their foliated structure to regional pressure, as proven by the 

 intense contortion of granitic veins and by the mechanical efl'ects recognized in 

 the rocks under the microscope. 



Danzig, E. Ueber die eruptive Natur ge\vis.ser Gneisse sowie des Grannlites im 

 siichsischen Mittelgebirge. Kiel, 1888. luaug.-Dis. 



Pox, Howard. On the Gneissic Rocks off the Lizard, with notes on the specimens by 

 J. J. IT. Teall. Quar. .Jour. Geol. Soc, No. 174, May, 1888, vol. xliv, p. 30'J. 



Geikie, a. Report on the recent works of the Geological Survey in the Northwest 

 Highlands of Scotland, based on the field notes and maps of Messrs. B. N. Peach, 

 .J. Home, W. Gunu, C. T. Cloi;gh, L. Hinxman, and H. M. Caddell. Quar. Jour. 

 Geol. Soc, No. 17.5, August, 1888, vol. xliv, p. 378. 



Hunt, T. Sterhy. On crystalline schists. Nature, September 27, 1888, p. 519. 



Le Veurier, M. Structure des gneiss. Note de M. Le Verrier, presentee a M. 

 Pouque. Comptes Rendus, October 29, 1888, p. 669. 



LoTTi, B. Sur les roches mf^tamorphosecs pendant les Ages Tertiaires dans I'ltalie 

 centrale. Bull. Soc. G6ol. de Prance, 1888, 3d series, vol. xvi, p. 406, No. 6. 



Lory, Ch. On the constitution and structure of the crystalline schists of the Western 

 Alps. (Abstract of Professor Lory's original x)aper, by Dr. P. H. Hatch. ) Nature, 

 September 20, 1888, p. 506. 



Mark, J. E. On some effects of pressure on the Devonian sedimentary rocks of North 

 Devon. Geol. Mag., May, 1888, p. 218. 



McMahon, C. a. Note on the foliation of the Lizard Gabbro. Geol. Mag., Pebruary, 

 1887, p. 74. 



The Gneissose Granite of the Himalayas. Geol. Mag., May, 1887, p. 212. 



Describes with some detail the macroscopic and microscopic structure of this 

 granite, and wiiich he contends could not have assumed its marked gneissic struc- 

 ture through merely mechanical agencies. Regardsit as produced by a forcing up 

 of a semi-plastic granite porphyry mass through favilts in the overlying rock where 

 it was subjected to enormous pressure. Before final consolidation took place, 

 minor and subsidiary eruptions took place, which forced new 8upi)lies of granitic 

 material into fissures formed in the previously injected rocks, and this fresh mate- 

 rial consolidated under conditions somewhat different from those of the first 

 eruptions. 



Michel-Levy, A. Sur I'origiue des terrains cristallins priniitifs. Bull. Soc. G6ol. 

 de Prance, 1888, 3d series, vol. xvi, p. 102, No. 2. 



Oldham, R. D. The Gneissose Rocks of the Himalayas. Geol. Mag., October, 1887, 

 p. 461. 



Reusch, H. Geologische Beobachtuugen in einem regional metamorphosirteu Ge- 

 biet am Hardangertjord in Norwegen. Neues Jahrb., 1887, Bell.- Baud, 1st Heft, 

 pp. 52-67 ; thirteen wood-cuts in text. 



Has studied the effects of i)refesure on sedimentary and massive rocks, and 

 shows how in conglomerates a schistose structure may bo produced which is quite 

 distinct from the bedding due to sedimentation. 



