344 KECOJiD OF SCIENCE FOR 1887 AND 1888, 



Bonnet, T. G. Note on specimens from Mybore, collected by G. Attwood. Qiiar. 



Jour. Geol. Soc, No. 175, August, 1888, vol. XLiv, p. G51, 



Describes the rocks us eciogites, bornbleude aud mica schists, felstoues and 



porphyrites. One color-plate showing micro-structure of flattened garnets. 

 " Note ou specimens of the Rauenthal Serpentine. Geol. Mag., February, 1887, 



p. 6.5. 

 Mr. Bonuoy is disposed to question Mr. Teall's statement that this serpentine is 



an altered hornblende rock, but regards it rather as derived from a rock in wliich 



olivine was an essential constituent. 

 BoKNEMANN, J. G. Der Quarzporphyr von Heiligenstein uud seine Fluidalstructur. 



Zeitschrift deuts. geol. Gesell., xxxix, Baud, 4. Heft, p. 793. 

 Ueber Schhxckeukegel und Laven. Eiu Beitrag zur Lehre vom Vulkanismus. 



Jahrb. der k preus. geol. Land- u. Bergakademie zu Berlin, 1887, p. 230. 

 BoRNEMANN, L. G., Jr. Ueber einige ueue Vorkomnniisse basaltischer Gesteine auf 



dem Gebiet der Messtischbliitter Gerstnngeu uud Eiseuach. Jahrb. der k. preus. 



geol. Land- u. Bergakademie zu Berlin, 1887, [). '291. 

 BosE, Paramatua, Nath. Notes on the igneous Rocks of the districts of Raipur and 



Balaghat, Central Provinces. Rec. Geol. Soc. of India, vol. xxi, P. 2d, 1888, 



p. 50. One plate, two (igures, showing micro- structures. 

 The rocks are described as felsites, basaltic rocks, apd tuffs. 

 BOSSCHA, J. Ueber den Meteorit vou Karang Modjo oder Magetan auf Java. Nciies 



Jahrb., Beil. Baud, 1st Heft, pp. 12G-I44, 1887. Three plates showing macro- aud 



micro-strnctnres. 

 Brady, Henry B. Note on the so-called "Soapstone" of Fiji. Quar. Jour. Geol. 



Soc, No. 173, Febrnary 18, 1888, vol. xliv, p. 1. 

 Bucking, H. Mittheilungeu iiber die Eruptivgesteine der Section Schmalkalden 



(Thiiringen). Jahrb. der k. preus. geol. Laud- u. Bergakademie zu Berlin, 1887, 



p. 119. 

 Camerlander, Carl von. Zur Geologie des Granulitgebietes vou Prachatitz am 



Ostraude des Btihmer Waldcs. Jahrb. der k. k. geol. Reichsanstalt, 1887, xxxvil, 



1st, pp. 117-142. 

 Cathrein, A. Ueber den Proterobas vou Leogaug. Neues Jahrb. Min., Geol., etc., 



1887, I. Baud, Erstes Heft, p. 113. 



Beitriige zur Petrographie Tirols. Neues Jahrb., 1887, i. Baud, ii. Heft, pp. 



147-172. 



Describes from the Tyroliau Alps a series of six rocks, comprising : (1) Staurolite 

 mica schists, (2) garuet amphibolites, (3) pyroxenic serpentines, (4) tourmaline 

 granite, (5) porphyrites, aud ((i) pitchstone porphyry. The garnet amphibolite 

 is interesting mainly from its pseudomorphs of plagioclases after garnets. The 

 serpentines are derived from diallage, brouzite or enstatite, and are appropriately 

 named pyroxene serpentine. The porphyrites are classed as hornblende, uralite, 

 mica, aud garnet porphyrites ; the last are characterized by the occurrence of 

 numerous reddish brown garnets, the largest of the dimensions of a hemp-seed, 

 and with channeled aud rounded faces shown to be d"e to oscillatory combina- 

 tions of dodecahedral with icositetrahedral forms. The pitchstone porphyry 

 presents a micro-crystalline or micro-felsitic ground-mass Avith lluidal struct, 

 ure with orthoclase aud oligoclasc porphyritically developed and more rarely 

 quartz and biotite. It occurs m the form of independent dikes and stocks, 

 oftenof considerable size, cutting the prevailing quartz-porphyry aud present- 

 ing sharply defined borders without transitions between the two anywhere dis- 

 cern able. 



Ueber primlire Verwachsung von Rutil mit Glimmer uud Eiseuerz. Neues 



Jahrb. Min., Geol., etc., 1888, ii. Band, 2. Heft, p. 151. 



Ueber Chloritoidschiefer vou Grossarl. Mm. uud pet. Mittheilungeu, viii. 



Baud, III. uud iv. Heft, p. 331. 



