A New Assemblage of Graptolites , Rhabdopleuran Hemichordates and Chitinous Hydroids from the Late Arenig ( Ordovician) of the Banestan area , East - Central Iran

Premiers Resultas Geochemiques sur L' Association Granites - Norites dans le Massif du Mont d' Alvand en Iran

A Rift- Valley in Western Persia

Conodonten aus dem Oberen Gotlandivem Deutschlands und der Kalnischen Alpen

On the Nature and Probable Origin of the Superficial Deposits in the Valleys and Deserts of Central Persia