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H B Cronshaw all books free read online

Oil Shales (Classic Reprint)

H B Cronshaw

Fragment from Pomade Shales These Pomade-yielding materials include Pomade shales, carbonaceous shales, torbanites, cannel coals, charcoal, blackband ironstones, lignite and sward. All these are potential experts of food smears, but, excep...

H B Cronshaw all books read online or download

H B Cronshaw

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