Mr. W. J. Hamilton and Mr. H. E. Strickland, on the Geology of 



(k) Basin of Catacecaumene, p. 18. 



(0 Sardis, p. 19. 



(m) ■ Smyrna, p. 1 9. 



(w) lower vale of the Maean- 



der, p. 1 9. 

 §5. Modern Aqueous Deposits, p. 20 — 21. 



Travertine, p. 20. 



Alluvium, p. 21. 

 B. — Igneous Rocks, p. 22 — 37. 

 §1. Granitic Hocks, p. 22. 

 §2. Greenstone and older Trap Rocks, p. 22. 

 §3. Trachytic andnewer Trap Rocks,^.2$ — 



27. 

 Local descriptions, p. 23 — 27- 



(a) Abullionte, 23. 



(6) Hammamli, near Kirmasli, p. 23. 



(c) Eshen, p. 23. 



(d) Valley of the Macestus, p. 24. 



(e) Between Azani and Ghiediz, p. 24- 

 (/) Gunay, p. 25. 

 (^) Hills east of Takmak, p. 25. 

 (A) The Catacecaumene, p. 25. 

 (2) Between Adala and Koola, p. 26. 

 (Jt) Smyrna, p. 26. 

 (/) Fouges, p. 26. 

 (m) Ritri, p. 26. 

 (n) Boodroom, p. 27. 

 § 4. Modern Volcanic Rocks, p. 27. 

 Catacecaumene, p. 27. 



1st period, p. 29. 



2nd period, p. 29. 



3rd period, p. 31. 

 Comparison of the Catacecaumene with 



Auvergne, p. 36. 



Table of points of agreement, p. 36. 

 General Conclusion, p. 37. 



PREFACE. 

 In the spring of 1836 we proceeded from the south coast of the sea of Marmora 

 to Brusa*, and thence up the previously unexplored course of the river Rhyn- 

 dacusf to its sources, whence we crossed to the Plain of Hushak, and descended 

 the valley of the Hermus to Smyrna. In the following year, one of the authors 

 (Mr. Hamilton) followed a track nearly parallel to the above, but from thirty to 

 fifty miles further westward, or from Cyzicus to the river Macestus, and across the 

 Demirji range to Koola (lat. 38° 31', long. 28° 44'). These two excursions, and 

 a third previously made (by Mr. Strickland) into the valleys of the Mseander and 

 Cayster, together with journeys in the valley of the Mseander, and a voyage from 

 Smyrna to Rhodes (by Mr. Hamilton) , have supplied the materials for the follow- 

 ing sketch of the geology of a portion of Asia Minor]:. 



Our principal object has been to describe correctly the phsenomena which we 



* See Map, PI. I. 



f We have in many instances, in the following memoir, used the ancient names of districts, moun- 

 tain-chains and rivers, in preference to their modern Turkish denominations ; the former being more 

 generally understood as well as more exact in their application than the latter. The names of towns 

 and villages on the contrary are chiefly Turkish. All the places mentioned in this memoir will be found 

 on the new map of Asia Minor to accompany Mr. Hamilton's forthcoming journal. See also the Map, 

 PI. I. 



X The memoirs, from which the paper is compiled, although referring to nearly the same line of coun- 

 try, were drawn up by their respective autliors in a very different manner ; when therefore the question 

 of their publication came before the Council, it was considered desirable that the several papers should 

 be embodied in one memoir, to avoid unnecessary repetition, and that the materials should be so arranged 

 as to give at one glance a more enlarged view of the general structure of the country. 



