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

At head of title: Imperial Mineral Resources Bureau.

The mineral industry of the British Empire and foreign countries. Statistics 1920-1922. Sulphur.

At head of title: Imperial Mineral Resources Bureau.

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

At head of title: Imperial Mineral Resources Bureau.

The mineral industry of the British Empire and foreign countries. Statistics, 1920-1922. Nitrates.

At head of title: Imperial Mineral Resources Bureau.

The mineral industry of the British Empire and foreign countries. Statistics, 1920-1922. Phosphates.

At head of title: Imperial Mineral Resources Bureau.

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

At head of title: Imperial Mineral Resources Bureau.

The mineral industry of the British Empire and foreign countries. Statistics, 1920-1922. Potash minerals.

At head of title: Imperial Mineral Resources Bureau.

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

At head of title: Imperial Mineral Resources Bureau.

The mineral industry of the British empire and foreign countries. Statistics, 1920-1922. Asbestos.

"Imprint date on cover": 1925.

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

At head of title: Imperial Mineral Resources Bureau.

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

At head of title: Imperial Mineral Resources Bureau.

The mineral industry of the British empire and foreign countries. Abrasives.

At head of title: Imperial Institute.

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

At head of title: Imperial Mineral Resources Bureau.

The mineral industry of the British Empire and foreign countries. Statistics, 1920-1922. Diamonds.

At head of title: Imperial Mineral Resources Bureau.

The mineral industry of the British Empire and foreign countries. Statistics, 1920-1922. Pyrites.

At head of title: Imperial Mineral Resources Bureau.