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J. F. Kellock Brown
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Stand Alone
![The Mining of Thin-coal Seams as Applied to the Eastern Coal-fields of Canada [microform]](/_next/image?url=https%3A%2F%2Fstorage.googleapis.com%2Fmenrva_img_storage%2Fcovers%2F9780665823336_cc320460.jpg&w=3840&q=80)