Trenched sections in devonian phosphate in Alborz mts. 2.Logs of two drilhoes through phosphate. 3. Detailed calculations on phosphate resewes, ALBORZ mts.

/ by M. Morahhed()

Old copper mines at Qaleh- Zari

/ D. Bazin- H. Hubner

Gravity concentration of the lead ore from Haffat Savaran

/ ()

Factors relerant to the exploration for porphyry copper deposits and some comments on the G.S.I. 51/yu (Darrehzar) report

/ by J.G. Angus()

Benefication studies on a lead- zinc sample from Koushk mine

/ by A. Rahjco()