Joseph Keele

Preliminary Report on the Clay and Shale Deposits of the Province of Quebec

Agotado

Joseph Keele Preliminary Report on the Clay and Shale Deposits of the Province of Quebec

Report on the Clay and Shale Deposits of the Western Provinces : (part II)

Agotado

Heinrich Ries Report on the Clay and Shale Deposits of the Western Provinces : (part II)

Preliminary Report on the Clay and Shale Deposits of the Western Provinces

Agotado

Heinrich Ries Preliminary Report on the Clay and Shale Deposits of the Western Provinces