asked the President of the Board of Trade whether the Gov- ernment is still continuing to purchase Australian zinc concentrates; if so, what tonnage has been acquired and paid for from 1st January to 31st October, 1920; what stocks are held by the Government, either in this country or Australia; and what steps are being taken by the Government to purchase the home production of zinc concentrates on as favourable terms as are being paid to the Australian Commonwealth producers?