IV 



Page 



Paraguay, Merian on the Geology of 15 



Porphyries, Leonhard on 1 



Pea Iron Ore or PisoUte, Merian on 23 



Quartziferous Porphyries, Leonhard on the 1 



Rhinoceros Remains, Giebel on Fossil 9 



Rock Salt in Switzerland, Merian on Borings for 13 



RouviLLE on the Coal Beds of the Larzac 23 



Silurian " Colonies," Barrande on the 37 



— - — Trilobite Faunas, Barrande on the three 31 



Studer on the Geology of Switzerland 26 



Switzerland, Studer on the Geology of 26 



, Merian on Borings for Rock Salt in 13 



Tertiary Deposits in the Wiirtemberg Alps, Fra as on 39 



Clays at Osnabriick, Beyrich on 40 



Transition Rocks, Goe ppert on the Flora of the 18 



Trilo bite Faunas, Barrande on the three Silurian 31 



Wiirtemberg Alps, Fra as on Tertiary Deposits in the 39 



