Vol. 60.] THE DISTRICT SURROUNDING THE DARDANELLES. 277 



andesites were merely unusual varieties of biotite-andesite. 

 The groundrnass is commonly pilotaxitic, less frequently hyalo- 

 pilitic. The best example of these came from the White Cliffs 

 (Dardanelles). An excellent biotite-andesite was collected on 

 the south-eastern slope of the watershed above Panagia (Imbros) ; 

 it contained, in addition to large hexagonal plates of biotite, a little 

 much-corroded hornblende and porphyritic green augite. 



Five specimens from the island of Strati were all h or n blend e- 

 andesites (containing a little dark-brown biotite), and were 

 exceptionally fresh and good- examples of this class of rocks. 

 Typical hypersthene-andesites, much decomposed, occur at 

 Korou. 



Oli vine-basalts were found on the Kuril Dagh and near 

 Keshan : from the latter locality some peculiar rocks were obtained. 

 One of these resembled an augitite; another consisted of olivine, 

 brownish augite, biotite, plagioclase, and orthoclase-felspar, with 

 an abundant clear glassy base. 



In the Serian-Tepe district, examples of serpentine, amphi- 

 bolite, epidote-amphibolite, and serpentine-schist occur. 

 The serpentines include weathered dunites and harzburgites. 



Appendix II. 



Notes on the post-Tertiary and Tertiary Fossils obtained hi/ 

 Col. English from the District surrounding the Dardanelles. 

 By Richard Bullen Xewton, Esq., F.G.S. 



[Plate XXIY.] 



Considerable interest may be attached to the fossils collected bv 

 Col. English in a number of localities surrounding the Dardanelles, 

 since many of the specimens rank as fresh records for this part of 

 South-Eastern Europe. One of the most important results accruing 

 from an examination of the collection has been the fixing of the 

 age of the coal-deposits at Masatly, which can now be 

 referred to the Stampian or Middle division of the 

 Oligocene System, on account of the discovery of Corbieula 

 scmistriata in those beds at that locality, in association with 

 Anthraeotherium-Temaina. 



The specimens are scheduled under the following formations: — 



Post-Pliocene. 

 Pliocene (Sicilian). 



f Pontian. 

 Miocene •' Sarmatian. 



[ Yindobonian (Helvetian -Tortonian). 



^ ' Aquitanian. 



Oligocene j,/ 1 



! Grampian. 



Eocene ... Lutetian. 



The whole of the collection has been generously presented to the 

 British Museum (Xatural History) by Col. English. 



