The mineral industry of the British Empire and foreign countries. Statistics, 1919-1921. Salt.

At head of title: Imperial Mineral Resources Bureau.

The mineral industry of the British Empire and foreign countries. Statistics, 1919-1921. Arsenic.

At head of title: Imperial Mineral Resources Bureau.

The mineral industry of the British Empire and foreign countries. Statistics, 1919-1921. China clay.

At head of title: Imperial Mineral Resources Bureau.

The mineral industry of the British Empire and foreign countries. Statistics, 1919-1921. Aluminum, including bauxite and cryolite.

At head of title: Imperial Mineral Resources Bureau.

The mineral industry of the British empire and foreign countries. Statistics, 1919-1921. Diatomaceous earth.

At head of title: Imperial mineral resources bureau.

The mineral industry of the British empire and foreign countries. Statistics, 1919-1921. Coal, coke and by-products.

At head of title: Imperial mineral resources bureau.

The mineral industry of the British Empire and foreign countries. Statistics, 1919-1921. Petroleum and allied products.

At head of title: Imperial mineral resources bureau.

The mineral industry of the British Empire and foreign countries. Statistics, 1919-1921. Cobalt.

At head of title: Imperial Mineral Resources Bureau.

The mineral industry of the British Empire and foreign countries. Statistics, 1919-1921. Cadmium.

At head of title: Imperial Mineral Resources Bureau.

The mineral industry of the British Empire and foreign countries. Statistics, 1919-1921. Iron and steel.

At head of title: Imperial Mineral Resources Bureau.

The mineral industry of the British Empire and foreign countries. Statistics, 1919-1921. Chrome ore and chromium.

At head of title: Imperial Mineral Resources Bureau.

The mineral industry of the British Empire and foreign countries. Statistics, 1919-1921. Nickel.

At head of title: Imperial Mineral Resources Bureau.

The mineral industry of the British Empire and foreign countries. Statistics, 1919-1921. Copper.

At head of title: Imperial Mineral Resources Bureau.

The mineral industry of the British Empire and foreign countries. Statistics, 1919-1921. Vanadium.

At head of title: Imperial Mineral Resources Bureau.

The mineral industry of the British Empire and foreign countries. Statistics, 1919-1921. Tin.

At head of title: Imperial Mineral Resources Bureau.