PHYSICAL eEOLOGT, 173 



Fuchs, Earl. Vulkane und Erdbeben. [Volcanoes and Earth- 

 quakes.] Pp. xii, 344 ; 1 plate (map). 8vo. Leipzig. 



. Ueber Gebirgsfaltungen. [Mountain-folds.] Verh. h.-h. 



geol. Reichs. pp. 196-198. 

 Remarks that no folds are symmetrical, but all thrust more to one 

 side than to the other ; the relation of this to the theory of mountain 

 chains is alluded to. E. B. T. 



. Bericht Uber die vulkanischen Ereignisse des Jahres 1874. 



[Report on the Volcanic Phenomena of 1874.] Min. Mitt. Heft ii. 

 pp. 57. 

 Notes on eruptions of Etna, Vesuvius, Stromboli, Ruwang, Foisi 

 Yama, Mani, and Vulcano ; 123 earthquake-shocks are recorded during 

 the year, and arranged in chronological order. F. W. R. 



Puchs, T. Ueber secundaro Infiltration von kohlensauren Kalk in 

 loses und poroses Gestein. [On secondary infiltration of calcic 

 carbonate.] Verh. Tc.-k. geol. Reiclis. pp. 198-201 (2 woodcuts). 

 Gives instances of alteration of beds in Sicily, Malta, <fec. by subse- 

 quent infiltrations producing curious effects. 



Greenwood, Col. Gr. Submerged Forests. Geol. Mag. dec. 2, 



vol. ii. pp. 239, 240. 

 Gives reasons why submerged forests do not prove submergence. 

 Halliday, I. G. Structure of Columnar Basalt. Sci. Goss. no. 125, 



pp. 116, 117. 

 Notices the alluvial nature of the soil of British Burmah, and the 

 way in which it cracks by contraction into prismatic forms. 



Herbst, Dr. G. Die Vulkane. Eine geologische Studie. [Volcanoes. 



A Geological Essay.] Das Ausland, pp. 145-150, 188-194. 

 Hull, Prof. E. The Volcanic Dust of Barbadoes, 1812. Geol 



Mag. dec. 2, vol. ii. pp. 287, 288. 



The dust fell after the eruption of the volcano of Le Souffrier, in St. 



Vincent, 100 miles distant. It is a brown impalpable powder. Under 



the microscope the grains appear to be the dust of sanidine, plagioclase, 



magnetite, and pyrites. W. T. 



Jentzsch, Dr. — . [Oscillations of Terra Jirma.] Schrift. phys.- 



ohon. Ges. K'dnigsberg. 

 Judd, John W. Contributions to the study of Volcanoes. Geol. 



Mag. dec. 2, vol. ii. 

 Introductory^ pp. 1-4. Progress of the science of Vulcanology. 

 Lipari Islands^ pp. 4-10, 56-70, map and woodcuts. The islands 

 are described, and the distribution of the centres of eruption along 

 three radiating lines of fissure demonstrated. An account is given of 

 the rocks composing these islands. 



Vulcano, pp. 99-115, plate and woodcuts. The history of this 

 volcano is sketched, and an account of its eruption in 1874 given. 

 The structure of the island and of the peninsula of Vulcan ello is 

 described, and its chemical products are noticed. 



