Gravity concentration of lead ore sample from Masserat company of Esphahan

/ Ahmad Rahjoo

Trilobites from the shahmirzad section, Alborz mountains, Iran: Their taxonomy, biostratigraphy and bearing for international correlation

/ Peng, Shanchi , ; Shanchi Peng, Gerd Ceyer, Bahaeddin Hamdi(Geyre, Gerd-Hamdi, Bahaeddin)

Duna mine: some nem proposals

/ by: M. Momenzadeh()

The seismicity of Iran the Silakhor, Lurestan, earthqake of 23rd. January,1909

/ (Moinfar,A.)

Concentration of the lead minerals of Saki part II

/ Forouzesh()